NEAR Data Archive

X-Ray Spectrometer (XRS)

This page provides direct links to volumes containing final versions of PDS-formatted data:

View final data submissions:

Level 1B

Uncalibrated data

Level 2

Spectra from the Eros orbital phase
HTML Browse tool for spectra from the Eros orbital phase
Calibration Tables

Level 3 Data Products

Data from the Eros orbital phase during solar flares (major flourescense)
HTML Browse tool for solar flare data from the Eros orbital phase
Eros Elemental Ratios

Plots of Level 1b and Level 2 Spectra

By mission phase
By Eros orbital phase, includes daily counts

Level 1b
Level 2
Go to the Expert Search of final data submissions (in development).

The following topics will aid your search through the NEAR Data Archive:

Where can I find...? provides information to help you locate data, shape models, browers, surface features of Eros and Mathilde, etcetera.
The NEAR documentation set provides one-stop access to all mission documents, instrument documents, observing logs, and data set descriptions.
Mission phases presents a table of date ranges and durations.
Data levels defines the different types or levels of process data found in the archive>.
Naming scheme defines the naming convention used for NEAR data volumes.
Directory structure describes the directory structures within NEAR data volumes.
Known and discovered problems lists discrepancies found in the final NEAR delivery.

Mission Phase	# of Data Files	Start Date (day of year)*	Stop Date (day of year)*	View the Data Directory (includes PDS labels)	View the Data Volume (includes documentation)
Cruise 2	149	1997-08-27 (239)*	1998-01-22 (022)*	X-Ray Full	nxcru2_0001
Cruise 2	149	1997-08-27 (239)	1998-01-22 (022)	X-Ray Summary	nxcru2_0001
Earth Flyby	4	1998-01-23 (023)	1998-01-26 (026)	X-Ray Full	nxerth_0001
Earth Flyby	4	1998-01-23 (023)	1998-01-26 (026)	X-Ray Summary	nxerth_0001
Cruise 3	116	1998-01-27 (027)	1998-12-19 (353)	X-Ray Full	nxcru3_0001
Cruise 3	138	1998-01-27 (027)	1998-12-19 (353)	X-Ray Summary	nxcru3_0001
Cruise 4	127	1999-02-03 (034)	1999-06-30 (181)	X-Ray Full	nxcru4_0001
Cruise 4	128	1999-02-03 (034)	1999-06-30 (181)	X-Ray Summary	nxcru4_0001
Eros Orbit: Far-Approach Injection 200km-North 100km-North 50km-A	133	2000-01-11 (011)	2000-06-12 (164)	X-Ray Full	nxeros_0001
	133	2000-01-11 (011)	2000-06-12 (164)	X-Ray Summary	nxeros_0001
Eros Orbit: 50km-A 35km-A 50km-BC	63	2000-06-13 (165)	2000-08-14 (227)	X-Ray Full	nxeros_0002
Eros Orbit: 50km-A 35km-A 50km-BC	63	2000-06-13 (165)	2000-08-14 (227)	X-Ray Summary	nxeros_0002
Eros Orbit: 50km-BC 100km-South 50km-D Low-Alt-Flyover-1 200km-South 35km-B	120	2000-08-15 (228)	2000-12-12 (347)	X-Ray Full	nxeros_0003
	120	2000-08-15 (228)	2000-12-12 (347)	X-Ray Summary	nxeros_0003
Eros Orbit: 35km-B Low-Alt-Flyover-2 35km-C	47	2000-12-13 (348)	2001-01-28 (028)	X-Ray Full	nxeros_0004
Eros Orbit: 35km-B Low-Alt-Flyover-2 35km-C	47	2000-12-13 (348)	2001-01-28 (028)	X-Ray Summary	nxeros_0004
Eros Orbit: 35km-C NO descent	14	2001-01-29 (029)	2001-02-11 (042)	X-Ray Full	nxeros_0005
Eros Orbit: 35km-C NO descent	14	2001-01-29 (029)	2001-02-11 (042)	X-Ray Summary	nxeros_0005
Eros On Surface	0	2001-02-19 (050)	2001-02-28 (059)	X-Ray Full	N/A
Eros On Surface	0	2001-02-19 (050)	2001-02-28 (059)	X-Ray Summary	N/A

Go to Top, Level 2, or Level 3

Level 2 Calibrated Data

Calibrated Data

Mission Phase	# of Data Files	Start Date (day of year)*	Stop Date (day of year)*	View the Data Directory (includes PDS labels)	View the Data Volume (includes documentation)
Eros Orbit: Far Approach Injection 200km-North 100km-North 50km-A	39302	2000-01-11 (011)	2000-05-09 (130)	Spectra (binary data)	nxeros_2002
Eros Orbit: 50km-A	39587	2000-05-10 (131)	2000-06-03 (155)	Spectra (binary data)	nxeros_2003
Eros Orbit: 50km-A	39360	2000-06-04 (156)	2000-06-26 (178)	Spectra (binary data)	nxeros_2004
Eros Orbit: 50km-A 35km-A	39383	2000-06-27 (179)	2000-07-23 (205)	Spectra (binary data)	nxeros_2005
Eros Orbit: 50km-BC	39748	2000-07-24 (206)	2000-08-15 (228)	Spectra (binary data)	nxeros_2006
Eros Orbit: 50km-BC 100km-South	40400	2000-08-16 (229)	2000-09-27 (271)	Spectra (binary data)	nxeros_2007
Eros Orbit: 100km-South 50km-D Low-Alt-Flyover-1 200km-South 35km-B	39846	2000-09-28 (272)	2000-12-20 (355)	Spectra (binary data)	nxeros_2008
Eros Orbit: 35km-B	40383	2000-12-21 (356)	2001-01-14 (014)	Spectra (binary data)	nxeros_2009
Eros Orbit: 35km-B	40657	2001-01-15 (015)	2001-02-07 (038)	Spectra (binary data)	nxeros_2010
Eros Orbit: 35km-C	5999	2001-02-08 (039)	2001-02-11 (042)	Spectra (binary data)	nxeros_2011

Browse Tool

Mission Phase	# of Data Files	Start Date (day of year)*	Stop Date (day of year)*	View the Images	View the Data Volume (includes documentation)
Eros Orbit	339301	2000-05-01	2001-02-11	Browse Tool for Spectra (html) - An integrated view of the XRS daily images at orbital distances less than 50km from Eros. This html file was duplicated on all sample volumes from the Eros orbital phase: nxeros_2002, nxeros_2003, nxeros_2004, nxeros_2005, nxeros_2006, nxeros_2007, nxeros_2008, nxeros_2009, nxeros_2010, and nxeros_2011.	nxeros_2002

Calibration Tables

Mission Phase	# of Data Files	Start Date (day of year)*	Stop Date (day of year)*	View the Directory (includes PDS labels)	View the Documentation
N/A	13	N/A	N/A	Calibration Files	Overview
Eros Orbit	7	N/A	N/A	Spectra	Flares and Background

Go to Top, Level 1B, or Level 3

Level 3 Data Products - Solar Flare Data and Browser, Eros Elemental Ratios

XRS Level 3 products were derived from data acquired during solar flares. Days of major flourescense coverage are:

2000-05-04 (125)
2000-06-02 (154)
2000-06-15 (167)
2000-06-17 (169)
2000-07-19 (201)
2000-12-27 (362)
2000-12-28 (363)
2001-01-02 (002)

Solar Flare Data (Calibrated)

Mission Phase	# of Data Files	Start Date (day of year)*	Stop Date (day of year)*	View the Data Directory (includes PDS labels)	View the Data Volume (includes documentation)
Eros Orbit	270	2000-05-04 (125)	2001-01-02 (002)	Solar Flare Data (binary data)	nxeros_2012

Solar Flare Browse Tool

Mission Phase	# of Data Files	Start Date (day of year)*	Stop Date (day of year)*	View the Images	View the Data Volume (includes documentation)
Eros Orbit	270	2000-05-04 (125)	2001-01-02 (002)	Browse Tool for Solar Flare Spectra (html) - An integrated view of the XRS daily images at orbital distances less than 50km from Eros..	nxeros_2012

Eros Elemental Ratios

Mission Phase	# of Data Files	Start Date (day of year)*	Stop Date (day of year)*	View the Directory (includes PDS labels)	View the Documentation
Eros Orbit	3	N/A	N/A	XRS_Results	Elemental Ratios

Go to Top, Level 1B, Level 2, or Level 3

NEAR Data Archive X-Ray Spectrometer (XRS)

NEAR Data Archive

X-Ray Spectrometer (XRS)