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VG2 NEP CRS RESAMPLED SUMMARY D2 RATE ELEC 96SEC V1.0 (PDS)

NSSDCA ID: PSFP-00609

Availability: Archived at NSSDC, accessible from elsewhere

Time span: 1989-08-24 to 1989-08-25

Description

This description was generated automatically using input from the Planetary Data System.

Data Set Overview ================= Counting rate from the D2 detector in the Cosmic Ray System (CRS) electron telescope (TET) on Voyager 2 during the Neptune encounter. The D2 detector nominally responds to electrons with kinetic energies above approximately 2.5 MeV (see detector description for details). Parameters ========== Sampling parameter name : time Sampling parameter resolution : 6.0 seconds Minimum sampling parameter : n/a Maximum sampling parameter : n/a Sampling parameter interval : 96.0 seconds Minimum available sampling interval : 96.0 seconds Data set parameter name : D2 rate Noise level : 0.000 counts/second Data set parameter unit : counts/second The D2 detector is located behind the D1 detector in the TET telescope, so that most of the electrons observed by D2 have to penetrate D1 first. The D2 rate therefore applies to higher energy electrons and the threshold energy is less distinct than for D1, but is near 2.5 MeV. The rate can be calculated from the electron differential flux in the same way as the D1 RATE (see D1 RATE description) with the following calibration table. ------------------------------------------------------------------Table 1. D2 response function ------------------------------------------------------------------| 11. 23. 41. 61. 80. 90. 100. ------------------------------------------------------------------0.989 | 0.000 0.000 0.000 0.001 0.002 0.001 0.001 1.179 | 0.000 0.000 0.000 0.013 0.023 0.021 0.018 1.372 | 0.000 0.000 0.000 0.037 0.052 0.051 0.043 1.567 | 0.000 0.019 0.028 0.063 0.082 0.066 0.061 1.763 | 0.041 0.034 0.045 0.090 0.111 0.098 0.080 1.959 | 0.106 0.078 0.072 0.119 0.142 0.125 0.097 2.157 | 0.255 0.186 0.127 0.152 0.170 0.146 0.109 2.355 | 0.488 0.381 0.228 0.206 0.212 0.176 0.126 2.553 | 0.772 0.627 0.361 0.272 0.255 0.202 0.139 2.752 | 1.019 0.864 0.501 0.340 0.299 0.226 0.152 2.951 | 1.220 1.053 0.634 0.400 0.335 0.250 0.165 3.150 | 1.461 1.218 0.746 0.459 0.375 0.289 0.188 3.350 | 1.628 1.378 0.940 0.515 0.456 0.411 0.282 Processing ========== The ENCYCLOPEDIA GENERATOR program was run by Nand Lal at Goddard Space Flight Center to read the EDR tape, check for error conditions, and reformat the data to generate a CRS encyclopedia tape. The resulting tape was sent to CalTech for subsequent data analysis. The VCRUSH program was run at CalTech to select data of interest from CRS encyclopedia tapes. In the case of counting rate data, no further analysis was done to produce the data in the PDS data sets. Note: Neither the ENCYCLOPEDIA GENERATOR or VCRUSH software are available for public use.

These data are available on-line from the Planetary Data System (PDS) at:

https://pds-ppi.igpp.ucla.edu/data/VG2-N-CRS-4-SUMM-D2-96SEC-V1.0/

Alternate Names

  • VG2-N-CRS-4-SUMM-D2-96SEC-V1.0

Discipline

  • Planetary Science: Fields and Particles

Additional Information

Spacecraft

Experiments

Questions and comments about this data collection can be directed to: Dr. Edwin V. Bell, II

 

Personnel

NameRoleOriginal AffiliationE-mail
Prof. Edward C. Stone, Jr.Data ProviderCalifornia Institute of Technologyecs@srl.caltech.edu
Dr. Richard S. SelesnickGeneral ContactCalifornia Institute of Technologyrss@srl.caltech.edu
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