Voyager In Space

 

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VOYAGER

Voyager LECP Data Analysis Handbook

 

In-Flight Calibration Studies

 

Study of Voyager 2 LECP Responses in Partial Exposure ("Chicken") Mode

 

Thomas P. Armstrong
and
Dong Feng Lu


TABLE 1

 

List of "before/after" Count Rate Ratios for Inbound Entry and Outbound Exit from Chicken Mode

 

  INBOUND ENTRY OUTBOUND EXIT

CHANNEL

 Sector 7 Sector 8 Sector C RATIO Sector 7 Sector 8 Sector C RATIO
PL01 8563.361 444.529 1042.241 13.583 5457.778 272.430 445.114 30.028
PL02 10131.093 345.964 1140.948 12.309 8096.444 273.795 563.705 26.983
PL03 6756.303 154.720 674.892 12.691 6617.333 150.804 419.935 24.027
PL04 3885.333 74.707 347.484 13.970 4631.112 80.879 255.235 26.097
PL05 3170.370 23.652 242.632 14.370 5255.111 26.794 243.606 24.115
PL06 496.296 0.539 30.132 16.753 1383.111 1.981 69.741 20.383
PL07 133.333 0.196 7.336 18.648 378.000 0.498 21.901 17.638
PL08 20.000 0.101 0.946 23.553 56.194 0.105 2.436 24.057
0001 644.334 3.080 17.247 45.264 1952.889 4.815 34.860 64.838
0003 14.646 2.883 2.978 123.078 81.875 3.445 3.606 486.898
0032 27.854 0.000 0.464 60.034 59.778 0.000 0.768 77.869
0033 22.167 0.000 0.321 68.963 53.729 0.000 0.543 98.946
0035 4.125 0.000 0.110 37.643 9.736 0.000 0.127 76.368
0038 90.667 0.000 1.590 57.021 148.222 0.000 2.655 55.827
0039 332.193 0.011 12.664 26.254 341.028 0.014 5.897 57.965

 

Note: Ratio is computed as (Sector 7 - Sector 8)/(Sector C - Sector 8) where Sector 8 is shield-penetrating background, Sector 7 is the full intensity for an "open" sector and Sector C is the "Chicken" sector in which the LECP was moved through two 1.8 degree steps from the background or shielded position towards the open, or normal position. 45 degrees of rotation, or 25 1.8 degree steps are required for full sector movement.

 

 

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Updated 8/9/19, Cameron Crane

VOYAGER 1 ELAPSED TIME

--:--:--:--
Days: Hours: Minutes: Seconds

*Since official launch
September 5, 1977, 12:56:00:00 UTC

VOYAGER 2 ELAPSED TIME

--:--:--:--
Days: Hours: Minutes: Seconds

*Since official launch
August 20, 1977, 14:29:00:00 UTC

QUICK FACTS

Manufacturer: Voyagers 1 and 2 were built in the Jet Propulsion Laboratory in Southern California.

Mission Duration: 40+ years have elapsed for both Voyager 1 and Voyager 2 (both are ongoing).

Destination: Their original destinations were Saturn and Jupiter. Their current destination is interstellar space.