NEAR Data Archive   Gamma-Ray Spectrometer (GRS)

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

• View final data submissions:
  • Level 1B
    • Uncalibrated data
  • Level 2
    • Eros orbital data for gamma-ray full spectra
    • Eros on-surface data for gamma-ray, representative spectra
    • Calibration Tables

  • Level 3 Data Products
    • Eros on-surface data products for gamma-ray, summary only
    • Eros abundance estimates

  • Plots of Level 1b and Level 2 Spectra
    • By mission phase
    • By Eros orbital phase
      • 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.

Level 1b Uncalibrated Data

Mission Phase	Start Date (day of year)*	Stop Date (day of year)*	# of Data Files	View the Data Directory (includes PDS labels)	View the Data Volume (includes documentation)
Cruise 2	1997-08-27 (239)*	1998-01-22 (022)*	149	Gamma-Ray Bursts	nxcru2_0001
			149	Gamma-Ray Full	nxcru2_0001
			149	Gamma-Ray Summary	nxcru2_0001
Earth Flyby	1998-01-23 (023)	1998-01-26 (026)	4	Gamma-Ray Bursts	nxerth_0001
			4	Gamma-Ray Full	nxerth_0001
			4	Gamma-Ray Summary	nxerth_0001
Cruise 3	1998-01-27 (027)	1998-12-19 (353)	116	Gamma-Ray Bursts	nxcru3_0001
			116	Gamma-Ray Full	nxcru3_0001
			138	Gamma-Ray Summary	nxcru3_0001
Cruise 4	1999-02-03 (034)	1999-06-30 (181)	127	Gamma-Ray Bursts	nxcru4_0001
			127	Gamma-Ray Full	nxcru4_0001
			127	Gamma-Ray Summary	nxcru4_0001
Eros Orbit: Far-Approach Injection 200km-North 100km-North 50km-A	2000-01-11 (011)	2000-06-12 (163)	133	Gamma-Ray Bursts	nxeros_0001
			133	Gamma-Ray Full	nxeros_0001
			133	Gamma-Ray Summary	nxeros_0001
Eros Orbit: 50km-A 35km-A 50km-BC	2000-06-13 (164)	2000-08-14 (226)	63	Gamma-Ray Bursts	nxeros_0002
			63	Gamma-Ray Full	nxeros_0002
			63	Gamma-Ray Summary	nxeros_0002
Eros Orbit: 50km-BC 100km-South 50km-D Low-Alt-Flyover-1 200km-South 35km-B	2000-08-15 (227)	2000-12-12 (346)	120	Gamma-Ray Bursts	nxeros_0003
			119	Gamma-Ray Bursts	nxeros_0003
			120	Gamma-Ray Bursts	nxeros_0003
Eros Orbit: 35km-B Low-Alt-Flyover-1 35km-C	2000-12-13 (347)	2001-01-28 (028)	47	Gamma-Ray Bursts	nxeros_0004
			47	Gamma-Ray Full	nxeros_0004
			47	Gamma-Ray Summary	nxeros_0004
Eros Orbit: 35km-C NO descent	2001-01-29 (029)	2000-02-11 (042)	14	Gamma-Ray Bursts	nxeros_0005
			14	Gamma-Ray Full	nxeros_0005
			14	Gamma-Ray Summary	nxeros_0005
Eros On Surface	2001-02-19 (050)	2001-02-28 (059)	0	Gamma-Ray Bursts	N/A
			4	Gamma-Ray Full	nxersf_0001
			0	Gamma-Ray Summary	N/A

    Go to Top, Level 2, or Level 3

Level 2 Calibrated Data

Mission Phase	Start Date (day of year)*	Stop Date (day of year)*	# of Data Files	View the Data Directory (includes PDS labels)	View the Data Volume (includes documentation)
Eros Orbit	2000-01-10 (010)*	2001-02-10 (041)*	18684	Gamma-Ray Full Spectra in BINARY format	nxeros_2001
Eros On Surface	2001-02-19 (050)*	2001-02-28 (059)*	34	Gamma-Ray Representative Spectra in tabular format	nxersf_2001

    Go to Top, Level 1B, or Level 3

Level 3 Data Products

 

Mission Phase	Start Date (day of year)*	Stop Date (day of year)*	# of Data Files	View the Data Directory (includes PDS labels)	View the Data Volume (includes documentation)
Eros On Surface	2001-02-19 (050)*	2001-02-28 (059)*	4	Gamma-Ray Summary Spectra in tablular format	nxersf_2002

Eros Abundance Estimates

Mission Phase	Start Date (day of year)*	Stop Date (day of year)*	# of Data Files	View the Data Directory (includes PDS labels)	View the Data Volume (includes documentation)
Eros On Surface	N/A	N/A	1	GRS_Results	MAPS results

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