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aareadme.txt 29-Aug-2002 21:11 41K
voldesc.cat 29-Aug-2002 11:27 5.6K [PDS catalog file]
PDS_VERSION_ID = PDS3
RECORD_TYPE = FIXED_LENGTH
RECORD_BYTES = 80
OBJECT = TEXT
PUBLICATION_DATE = 2001-07-12
NOTE = "AAREADME.TXT File for Volumes NNEROS_2001,
NNEROS_2002, NNEROS_2003, NNEROS_2004, and
NNEROS_2005 containing the following products:
Volume NNEROS_2001
Dataset NEAR-A-NIS-5-EDR-EROS/ORBIT-V1.0
Calibration documentation and files
Browse facility NEAR-NIS-BROWSE-V1.0 (Partial)
Browse facility NEAR-NIS-SAMPLE-BROWSE-V1.0
Volume NNEROS_2002
Calibration documentation
Browse facility NEAR-NIS-BROWSE-V1.0 (Full)
Volume NNEROS_2003
NEAR-A-NIS-5-EDR-EROS/ORBIT/PDSREV-V1.0
Calibration documentation and files
Volume NNEROS_2004
NEAR-A-NIS-5-EDR-CRUISE1/UTCDOY-V1.0
NEAR-A-NIS-5-EDR-CRUISE2/UTCDOY-V1.0
NEAR-A-NIS-5-EDR-EARTH/UTCDOY-V1.0
NEAR-A-NIS-5-EDR-CRUISE3/UTCDOY-V1.0
NEAR-A-NIS-5-EDR-EROS/FLY/BY/UTCDOY-V1.0
NEAR-A-NIS-5-EDR-CRUISE4/UTCDOY-V1.0
NEAR-A-NIS-5-EDR-EROS/ORBIT/UTCDOY-V1.0
Calibration documentation and files
Volume NNEROS_2005
NEAR-A-NIS-5-EDR-CRUISE1/SUBPHA-V1.0
NEAR-A-NIS-5-EDR-CRUISE2/SUBPHA-V1.0
NEAR-A-NIS-5-EDR-EARTH/SUBPHA-V1.0
NEAR-A-NIS-5-EDR-CRUISE3/SUBPHA-V1.0
NEAR-A-NIS-5-EDR-EROS/FLY/BY/SUBPHA-V1.0
NEAR-A-NIS-5-EDR-CRUISE4/SUBPHA-V1.0
NEAR-A-NIS-5-EDR-EROS/ORBIT/SUBPHA-V1.0
Calibration documentation and files
"
END_OBJECT = TEXT
END
NEAR Mission NEAR-INFRARED SPECTROMETER Calibrated Data Set
========================================================================
Introduction
============
These volumes of the Near Earth Asteroid Rendezvous (NEAR) contain
calibrated data from the NEAR Near Infrared Spectrograph, as well as
the documentation, procedures and data files required to replicate
that calibration.
This document provides an overview of these volumes of the Near Earth
Asteroid Rendezvous (NEAR) NIS Calibrated Data Set, including a summary
of the volumes' contents.
The NEAR Science Data Center (SDC) archives NEAR calibrated science
data to the Small Bodies Node (SBN) of the Planetary Data System (PDS).
SDC provided volumes NNEROS_2001 and NNEROS_2002 as part of the NEAR
level 2 data set delivery. SBN reviewed these volumes and determined
that the following revisions and new products were needed to
facilitate data retrieval and analysis:
1) The NNEROS_2003 volume contains a new, PDS-generated version of
the original NIS (Nixel) database found on volume NNEROS_2001.
The original MET_HI_WORD and MET_LO_WORD columns were were replaced
with the calculated MET, 2) an offset was added to the raw data
numbers for RAW_GE_DATA and RAW_INGASS_DATA so that all values
would be positive, and 3) the original FITS header was modified
to include a FITS-compliant binary table extension.
2) The spectra in the PDS-revised NIS (Nixel) database located on
volume NNEROS_2003 were split and grouped by UTC (observation)
date and NIS mission subphase:
a) The NNEROS_2004 volume contains spectra grouped by UTC
(observation) date. One FITS binary table was created for
each UTC date.
b) The NNEROS_2005 volume contains spectra grouped by NIS mission
subphase. One FITS binary table was created for each subphase.
Volume Format
=============
These volumes have been formatted according to the ISO-9660 level 2
Interchange Standard.
These volumes do not contain any Extended Attribute Records (XAR).
Thus, some VAX/VMS users may have problems accessing files on these
volumes.
File Formats
============
The data files are presented in both the PDS and FITS form. All
document files and most labels contain an 80-byte fixed length record,
with a carriage return (ASCII 13) and line feed (ASCII 10) as the 79th
and 80th byte respectively. This allows the files to be read by
MS-DOS/Windows, Unix, and VMS operating systems. All the tabular files
in the INDEX and DOCUMENT directory are formatted according to PDS
standards. It should be noted that the index tables are formatted so
that they may be read directly into many database management systems.
All fields are separated by commas, and character fields are inclosed in
double quotes (").
The calibration files are ASCII tables with detached PDS labels.
Volume Contents
===============
Files on these volumes are organized into sets of subdirectories
below the top-level directories. The following table shows the
structure of these directories. See the *INFO.TXT files
in each directory for specific information on the files in the directory.
Volume directory structure (Volumes NNEROS_2001 and NNEROS_2002):
|-AAREADME.TXT The text version of the AAREADME file.
|
|-BROWSE---
|
|-CALIB---- ***N.B. Not present on Volume NNEROS_2002
|
|-CATALOG--
|
|-DATA-----
|
|-DOCUMENT-|-NISCALSW---
| |-NISCALTB---
|
|-ERRATA.TXT Text information describing data errors/anomalies.
|
|-GEOMETRY- ***N.B. Not present on Volume NNEROS_2002
|
|-INDEX----
|
|-VOLDESC.CAT Description of the contents of these volumes.
Volume directory structure (Volumes NNEROS_2003 through NNEROS_2005):
|-AAREADME.TXT The text version of the AAREADME file.
|
|-CALIB----
|
|-CATALOG--
|
|-DATA-----
|
|-DOCUMENT-|-NISCALSW---
| |-NISCALTB---
|
|-GEOMETRY-
|
|-INDEX----
|
|-VOLDESC.CAT Description of the contents of these volumes.
Directory
Name Description
-----------------------------
BROWSE NIS Level 3 Browse product (partial on Volume NNEROS_2001,
full on NNEROS_2002; see BROWSE/BROWINFO.TXT).
CALIB NIS calibration file as tables with PDS labels (only on volumes
NNEROS_2001, NNEROS_2003, NNEROS_2004, and NNEROS_2005).
CATALOG Templates for the mission, instrument host, instrument,
and data set. See CATINFO.TXT.
DATA NIS database as a FITS file NIXDB.FIT with a PDS detached
label. Parameter definitions are in the PDS label file.
(Data is only on volumes NNEROS_2001 NNEROS_2003, NNEROS_2004,
and NNEROS_2005).
DOCUMENT Documentation
of the instrument in ASCII text, MS/Word and PDF format,
documentation of the NEAR mission including an overview in
ASCII text and PDF format, articles from the Johns Hopkins
APL Technical Digest for the NEAR mission in PDF format.
Documentation describing the instrument and the calibration
of instrument data. Volumes NNEROS_2003, NNEROS_2004, and
NNEROS_2005 contain documentation providing sample data values
for calibrated spectra on these volumes.
GEOMETRY This directory contains only a GEOMINFO.TXT file.
A separate GEOMETRY volume contains all of the
SPICE kernels in text transfer format for the mission phase and
the supporting documentation (only on volumes NNEROS_2001,
NNEROS_2003, NNEROS_2004, and NNEROS_2005).
INDEX INDEX TABLES for this CD and the volume set describing times and
key data file parameter values. See INDXINFO.TXT.
(Usable index information is only on volumes NNEROS_2001,
NNEROS_2003, NNEROS_2004, and NNEROS_2005).
Mission Phase Parameters (Planned Values; Feb. 2000)
-------------------------------------------------------
1) Phase Name
2) Segment (Phase Abbreviation)
3) Start Year, DayOf Year
4) End Year, DayOf Year,
5) Length(days)
-------------------------------------------------------
CRUISE1 CRU1 1996051 1997175 491
MATHILDE MATH 1997176 1997178 3
CRUISE2 CRU2 1997179 1998022 209
EARTH ERTH 1998023 1998026 4
CRUISE3 CRU3 1998027 1998356 330
EROS/FLY/BY ERFB 1998357 1998357 1
CRUISE4 CRU4 1998358 2000010 383
EROS/ORBIT EROS 2000011 2001043 399
EROS/SURFACE ERSF 2001044 2001059 16
-------------------------------------------------------
NIS Mission Phases and Subphases
---------------------------------
NIS-specific mission phase and subphase are working divisions of the NIS
observations within the NEAR mission. NIS-specific phases divide major
mission "eras," e.g., A = initial cruise, B= Earth Swingby, etc. Subphases
group a set of related observation sequences together, and allow easy
distinction between observations close in time, but with different targets,
sequence parameters, or scientific objectives.
The mission elasped time, MET, corresponds to the first spacecraft 1-Hz pulse
after the start of the first second of integration of the first spectrum of
the sequence, i.e., 1 second after the actual start of the integration.
The MET is defined as number of seconds since launch at UT February 17 1996
20:43:28.78. See Section 6.2 of Izenberg et al. (2000) for a detailed
explanation of relative timing of spectrum acquisition and the spacecraft
pulse.
This table is a copy of Table 2 in the NIS document, EXTRINFO.TXT, found
on the NEAR Archive volume /NNCOLL_1001/NNCRU1_0001/EXTRAS/.
NIS Phase/Subphase DOY MET Range
----------------------------------------------------------------------
A - Initial Cruise
AA- NIS Checkout 96_108 005195300-005307000
AB - All-On Test 96_143 008134300-008214500
AC - Dark Test 97-220 046462700-046469100
AD - Dark Test 97-260 049913000-049921100
AE - Cover open 97-267 050512200-050522100
AF - NIS Checkout (Caltarget A) 97-269 050668100-050677100
B - Earth Flyby
BA - Earth - Asia/Africa 98_023 060949600-060951200
BB - Earth - S. Africa 98_023 060952200-060952700
BC - Earth - Antarctica 98_023 060953700-060954000
BD - Moon Radiometry 98_023 060993100-060995800
BE - Caltarget B 98_023 061004500-061005100
BF - Moon MSI/NIS Coalign 98_026 061216600-061218800
C - Final Cruise
CA - 300 sec. Dark Tests 98_231 078897700-078899000
CB - Caltarget C 98_231 078899000-078901000
CC - Full Nixel Test-Caltarget 98_231 078901000-078909000
CD - 300 sec. Dark Tests 98_231 078909000-078910000
CE - Jupiter Mirror Plane Test 98_231 078924000-078932000
CF - Seq. Exerciser/Throughput 98_313 085993000-086005000
CG - Global seq. Test 98_323 086664000-086860000
CH - Caltarget Stability Test 98_324 086930000-086936900
CI - Deep Space Caltarget 1 98_324 086937000-086939000
CJ - SDC Throughput 98_348 089043000-089047000
CK - Light Curve "3"* 98_349 089099000-089120600
D - Eros Approach/Flyby
DA - Contingency Sequence 98_357 089837000-089861000
E - Eros-Eros Cruise
EA - Caltarget 2 99_041 094087000-094095000
EB - Caltarget 3 99_042 094178000-094182000
EC - Caltarget 4 99_049 094782000-094787000
ED - Caltarget 5 99_088 098113000-098117000
EE - Caltarget 6 99_109 099927000-099931000
EF - Dark cals 99_197 107561000-107585000
EG - Caltarget 7 99_198 107587000-107589000
EH - Mag Wheelie RA* 99_198 107593000-107598000
EI - LPF Test Global Map (50 in) 99_349 120673000-120673950
EJ - LPF Test Latscans (50-45) 99_349 120674000-120701150
EK - LPF Test Global Map (45 in) 99_349 120701200-120702440
EL - LPF Test Latscans (45-40) 99_349 120702500-120716440
EM - LPF Test Full Nixel Test 99_350 120716600-120719899
EN - LPF Test Global Map (40 in) 99_350 120719900-120721400
EO - LPF Test InGaAs Opt. (40-30) 99_350 120721401-120732400
EP - LPF Test Global Map (30 in) 99_350 120732401-120734000
EQ - LPF Test InGaAs Opt. (30-20) 99_350 120734001-120741000
ER - LPF Test MP Globals (in) 99_350 120741001-120751600
ES - LPF Test Minimum Phase Point 99_350 120751601-120755300
ET - LPF Test Globals (out) 99_350 120755301-120763000
EU - LPF Test Latscans (out) 99_350 120763001-120766400
F - Eros Approach
FA - Eros Caltarget A1 00_011 122960800-122963100
FB - LPF Re-Test Global Map (50) 00-019 123686000-123687200
FC - LPF Re-Test Latscans (50-45) 00-019 123687201-123714400
FD - LPF Re-Test Global Map (45) 00-019 123714401-123715600
FE - LPF Re-Test Latscans (45-40) 00-019 123715601-123729700
FF - LPF Re-Test Full Nixel Test 00-019 123729701-123733000
FG - LPF Re-Test Global Map (40) 00-019 123733100-123734500
FH - LPF Re-Test InGaAs Opt.(30) 00-019 123734501-123745170
FI - LPF Re-Test Global Map (30 in) 00-020 123745171-123747000
FJ - LPF Re-Test InGaAs Opt.(20) 00-020 123747001-123753600
FK - LPF Re-Test MP Globals (in) 00-020 123753700-123764800
FL - LPF Re-Test Min. Phase Point 00-020 123764801-123768400
FM - LPF Re-Test - Globals (out) 00-020 123768401-123776000
FN - LPF Re-Test - Latscans (out) 00-020 123776100-123779600
FO - Nixel Raster Tests 00_025 124182100-124216700
FP - Caltarget A2 00_025 124220701-124223100
FQ - MS Light Curve 4* (RA) 00_029 124543900-124564300
FR - Mirror Plane Test (w/MSI) 00_031 124769800-124778000
FS - Mirror Geom 1 (w. MSI) 00_032 124796800-124799700
FT - Mirror Geom 2 (w. MSI) 00_036 125122600-125131000
FU - NIS "Movie" 6* 00_037 125212600-125233000
FV - Caltarget A3 00_038 125317900-125321100
FW - NIS "Movie" 7* 00_041 125584000-125604500
FX - Global Morph 1* + L Curve 8* 00_042 125647600-125687800
FY - NIS MS Rotation 1* 00_043 125725600-125745700
G - Low Phase Flyby
GA - Global Map (50 in) 00_044 125835500-125836000
GB - Latitude Scans (50-45 in) 00_044 125836557-125863500
GC - Global Map (45 in) 00_044 125863700-125864400
GD - Latitude Scans (45-40 in) 00_044 125865000-125878600
GE - Full Nixel Test 00_044 125879100-125881825
GF - Global Map (40 in) 00_044 125882400-125883300
GG - InGaAs Opt. Latscan (40-30) 00_044 125883700-125894400
GH - Global Map (30 in) 00_044 125894450-125895900
GI - InGaAs Opt. Latscan (30-20) 00_044-00_045 125896300-125902700
GJ - Minimum Phase Globals (in) 00_045 125903100-125913700
GK - Minimum Phase Point 00_045 125913900-125917200
GL - Globals (out) 00_045 125917550-125920300
H - High Orbit I (370x300 km)
HA - Daily Global "46" *** 00_046 126023200-126024300
HB - Daily Global "47" *** 00_047 126077200-126096300
HC - Caltarget O1 00_047 126096400-126099600
HD - NIS Global Morph, 3x3*** 00_047 126103200-126124600
HE - Daily Global "48" *** 00_048 126204900-126206100
HF - Daily Global "49" *** 00_049 126250000-126251100
HG - Daily Global "50" *** 00_050 126343600-126344700
HH - NIS Global Morph 2* 00_050 126360600-126381300
HI - Daily Global "51" *** 00_051 126462400-126463500
HJ - NIS Global Morph 3* 00_052 126518200-126538800
HK - Daily Global "52" *** 00_052 126545100-126546300
HL - Daily Global "53" *** 00_053 126664000-126665100
HM - Daily Global "54" *** 00_054 126678400-126679500
HN - Global Morph 4* 00_054 126708100-126727100
HO - Daily Global "55" *** 00_055 126790900-126792000
I -Transfer to 200 Km Orbit (300x200 km)
IA - Daily Global "56" *** 00_056 126865600-126866700
IB - Multispectral Rotation 3* 00_056 126880000-126898300
IC - Daily Global "57" *** 00_057 126970000-126971100
ID - Global Morph 5* 00_058 127022200-127043100
IE - Daily Global "58" *** 00_058 127065500-127066500
IF - Caltarget O2 00_059 127116100-127119300
IG - Daily Global "63" 00_063 127477600-127479000
J - 200 km Orbit
JA - Daily Global "65" 00_065 127650400-127651800
JB - Daily Global "66" 00_066 127758400-127759400
JC - NIS Polar Lat 1 00_069 128056500-128072100
JD - NIS Polar Lon 1 00_070 128122000-128141400
JE - NIS Feature Track 1 00_074 128413600-128423500
JF - Caltarget O3 00_074 128434900-128438100
JG - NIS Feature Track 2 00_074 128500600-128510500
JH - NIS Flyover 3* 00_075 128512600-128529700
JI - South Polar Lon 1 00_076 128596900-128616300
JJ - NIS Feature Track 3 00_077 128683600-128688300
JK - NIS Flyover 4 00_079 128845626-128859500
JL - South Polar Lon 2 00_080 128929700-128949100
JM - NIS NPolar Lat 2 00_081 129019100-129035100
JN - NIS SouthPolar_A 00_086 129446200-129525500
JO - NIS SouthPolarLon 00_086-00_087 129525400-129541600
JP - NIS Flyover 12 00_088 129617200-129637100
JQ - NIS Flyover 13 00_088 129637600-129703100
JR - NIS Flyover 14, N. Eq. Lon 3 00_089 129703200-129788700
JS - NIS Feature Track 7 00_090 129788800-129807900
JT - NIS Feature Track 8 00_090 129808600-129827700
JU - NIS Flyover 15 00_091 129703200-129896000
JV - NIS Polar Lon 3 00_091 129897400-129917300
JW - NIS Flyover 16 00_092 129960100-129979200
JX - NIS Flyover 17 00_092 129981100-130000200
JY - NIS Flyover 18 00_093-00_094 130117900-130137900
K - 200-100 km Transfer
KA - NIS Daily Global 95 00_095 130263500-130305699
KB - NIS Equat. Periapsis 00_096 130305700-130434699
KC - NIS Daily Global 97 00_097 130434700-130503399
KD - NIS Daily Global 98 00_098 130503400-130586299
KE - NIS Daily Global 99 00_099 130586300-130695999
KF - NIS Daily Global 100 00_100 130696000-130742799
KG - NIS Daily Global 101 00_101 130742800-130786499
KH - NIS RegGlobal 101 00_101 130786500-130861499
KI - NIS RegGlobal 102 00_102 130861500-130962399
L - 100 km Orbit
LA - NIS LonScan 103A 00_103 130962400-130994799
LB - NIS LonScan 104A 00_104 130994800-131017599
LC - NIS LonScan 104B 00_104 131017600-131099099
LD - NIS RegGlobal 105 00_105 131099100-131108099
LE - NIS South 2x3s 105 00_105 131108100-131167499
LF - NIS RegGlobal 106 00_106 131167500-131170499
LG - NIS Feature 2x2 106 00_106 131170500-131221599
LH - NIS LonScan 106A 00_106 131221600-131244999
LI - NIS LonScan 106B 00_106 131245000-131253399
LJ - NIS North 2x3s 107 00_107 131253400-131333999
LK - NIS RegGlobal 107 00_107 131334000-131349000
LL - NIS Feature 2x2 107 00_107-00_108 131335800-131657099
LM - NIS Feature 2x2 111 00_111 131657100-131661399
LN - NIS Lon Scan 111 00_111 131661400-131684099
LO - NIS North 2x3s 111 00_111-00_112 131684100-131706699
LP - NIS Lon Scan 112 00_112 131706700-131771499
LQ - NIS Caltarget O4 00_112-00_113 131771500-131887499
M - 100-50 km Transfer
MA - NIS North 2x3s 114 00_114 131887500-131951699
MB - NIS North 2x3s 115 00_115 131951700-131975199
MC - NIS Feature Track 115 00_115 131975200-131979300
MD - NIS RideNLR 116 00_116 132034300-132056399
ME - NIS North 2x3s 116A 00_116 132056400-132068099
MF - NIS North 2x3s 116B 00_116 132068100-132117099
MG - NIS RideNLR 117 00_116-00_117 132117100-132139899
MH - NIS Flyover 117 00_117 132139900-132203399
MI - NIS Feature Track 117 00_117-00_118 132203400-132207699
MJ - NIS LowEmissMaps 118A 00_118 132207700-132213099
MK - NIS LowEmissMaps 118B 00_118 132213100-132219099
ML - NIS LowEmissMaps 118C 00_118 132219100-132226899
MM - NIS RideNLR 118 00_118 132226900-132289299
MN - NIS Feature Track 118 00_118-00_119 132289300-132313299
MO - NIS RideNLR 119 00_119 132313300-132381599
MP - NIS LowEmissMaps 119 00_120 132213100-132399699
MQ - NIS RideNLR 120 00_120 132399700-132462599
MR - NIS North 2x3s 120 00_120-00_121 132462600-132479799
MS - NIS RideNLR 121 00_121 132479800-132548499
MT - NIS Feature Track 121 00_121-00_122 132548500-132572499
MU - NIS RideNLR 122 00_122 132572500-132635799
N - Low Orbit I (50 km)
NA - NIS Low Orbit Week 00122 00_123-00_129 132635800-133240699
NB - NIS Low Orbit Week 00129 00_130-00_136 133240700-133664999
----------------------------------------------------------------------
Notes:
DOY is day of year: two digit year followed by Julian day.
MET range shows inclusive but not exact bounding times for the
sequences in the given subphase.
* Number represents MSI observation number. Ex: Light Curve "3" is the
first NIS light curve, but the 3rd MSI light curve.
** RA = Ride Along with another instrument.
*** Early Daily globals and MSRots have bad command sequences that cause
lost and/or contaminated darks.
----------------------------------------------------------------------
Whom to Contact for Information
===============================
NEAR Science Data Center:
Douglas B. Holland
The Johns Hopkins University
Applied Physics Laboratory
11100 Johns Hopkins Road
Laurel MD 20723
Email: Douglas.Holland@jhuapl.edu
Howard W. Taylor
The Johns Hopkins University
Applied Physics Laboratory
11100 Johns Hopkins Road
Laurel MD 20723
Email: Howard.Taylor@jhuapl.edu
NISCAL:
Noam Izenberg
The Johns Hopkins University
Applied Physics Laboratory
11100 Johns Hopkins Road
Laurel MD 20723
Email: Noam.Izenberg@jhuapl.edu
NEAR NIS Team:
James F. Bell
Cornell University
402 Space Sciences Building
Ithaca, NY 14853-6801
Email: jfb8@cornell.edu
Planetary Data Systems, Small Bodies Node:
University of Maryland
Department of Astronomy, CSS 2337
402 Space Sciences Building
College Park, MD 20742-2421 USA
Email: grayzeck@astro.umd.edu
http://pdssbn.astro.umd.edu