Voyagers 1 and 2 Yearly Ephemerides Built Around The NASA/JPL Horizons API PHP Program by Jay Tanner of Geneva, NY, USA

Calendar Year (1978  to  2098)

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Double-Click Within Text Area to Select ALL Text VOYAGERS 1 and 2 YEARLY EPHEMERIDES FROM BOTH GEOCENTRIC and HELIOCENTRIC PERSPECTIVES ############################################################### VOYAGER 1: GEOCENTRIC statistics for each month of year 2026 CALENDAR_DATE_UTC | DISTANCE_AU | RAD_VEL_mi/h | LIGHT_TIME ------------------|-------------|--------------|--------------- 2026-Jan-01 00:00 | 169.9842426 | +15724.817 | 0d 23:33:42.95 2026-Feb-01 00:00 | 170.0116432 | -7148.491 | 0d 23:33:56.62 2026-Mar-01 00:00 | 169.9179491 | -16686.437 | 0d 23:33:09.87 2026-Apr-01 00:00 | 169.7911249 | -12395.136 | 0d 23:32:06.58 2026-May-01 00:00 | 169.7549153 | +4894.584 | 0d 23:31:48.51 2026-Jun-01 00:00 | 169.8954930 | +31107.128 | 0d 23:32:58.66 2026-Jul-01 00:00 | 170.2416171 | +57926.295 | 0d 23:35:51.38 2026-Aug-01 00:00 | 170.8002432 | +80191.548 | 0d 23:40:30.14 2026-Sep-01 00:00 | 171.4953264 | +91240.978 | 0d 23:46:16.99 2026-Oct-01 00:00 | 172.1994174 | +88215.168 | 0d 23:52:08.33 2026-Nov-01 00:00 | 172.8458262 | +71204.221 | 0d 23:57:30.89 2026-Dec-01 00:00 | 173.3007723 | +45266.836 | 1d 00:01:17.91 --------------------------------------------------------------- VOYAGER 2: GEOCENTRIC statistics for each month of year 2026 CALENDAR_DATE_UTC | DISTANCE_AU | RAD_VEL_mi/h | LIGHT_TIME ------------------|-------------|--------------|--------------- 2026-Jan-01 00:00 | 142.4661582 | +43157.282 | 0d 19:44:51.29 2026-Feb-01 00:00 | 142.6980816 | +15048.392 | 0d 19:46:47.03 2026-Mar-01 00:00 | 142.7272716 | -5726.395 | 0d 19:47:01.59 2026-Apr-01 00:00 | 142.6246407 | -17613.274 | 0d 19:46:10.38 2026-May-01 00:00 | 142.4876536 | -15462.597 | 0d 19:45:02.02 2026-Jun-01 00:00 | 142.4169683 | -247.038 | 0d 19:44:26.75 2026-Jul-01 00:00 | 142.5014003 | +23008.211 | 0d 19:45:08.88 2026-Aug-01 00:00 | 142.7929722 | +49728.605 | 0d 19:47:34.38 2026-Sep-01 00:00 | 143.2866264 | +72355.757 | 0d 19:51:40.71 2026-Oct-01 00:00 | 143.9021013 | +84563.143 | 0d 19:56:47.84 2026-Nov-01 00:00 | 144.5841891 | +83395.096 | 0d 20:02:28.20 2026-Dec-01 00:00 | 145.1810050 | +68706.723 | 0d 20:07:26.02 ############################################################### ############################################################### VOYAGER 1: HELIOCENTRIC statistics for each month of year 2026 CALENDAR_DATE_UTC | DISTANCE_AU | RAD_VEL_mi/h | LIGHT_TIME ------------------|-------------|--------------|--------------- 2026-Jan-01 00:00 | 169.2457348 | +37765.143 | 0d 23:27:34.43 2026-Feb-01 00:00 | 169.5479821 | +37765.040 | 0d 23:30:05.25 2026-Mar-01 00:00 | 169.8209792 | +37765.021 | 0d 23:32:21.48 2026-Apr-01 00:00 | 170.1232259 | +37764.983 | 0d 23:34:52.30 2026-May-01 00:00 | 170.4157222 | +37764.906 | 0d 23:37:18.26 2026-Jun-01 00:00 | 170.7179676 | +37764.755 | 0d 23:39:49.08 2026-Jul-01 00:00 | 171.0104612 | +37764.428 | 0d 23:42:15.04 2026-Aug-01 00:00 | 171.3127016 | +37764.001 | 0d 23:44:45.86 2026-Sep-01 00:00 | 171.6149387 | +37763.623 | 0d 23:47:16.68 2026-Oct-01 00:00 | 171.9074234 | +37763.304 | 0d 23:49:42.63 2026-Nov-01 00:00 | 172.2096556 | +37763.102 | 0d 23:52:13.44 2026-Dec-01 00:00 | 172.5021372 | +37762.991 | 0d 23:54:39.39 --------------------------------------------------------------- VOYAGER 2: HELIOCENTRIC statistics for each month of year 2026 CALENDAR_DATE_UTC | DISTANCE_AU | RAD_VEL_mi/h | LIGHT_TIME ------------------|-------------|--------------|--------------- 2026-Jan-01 00:00 | 141.7064519 | +33647.691 | 0d 19:38:32.20 2026-Feb-01 00:00 | 141.9757521 | +33648.733 | 0d 19:40:46.58 2026-Mar-01 00:00 | 142.2189983 | +33649.738 | 0d 19:42:47.96 2026-Apr-01 00:00 | 142.4883153 | +33650.896 | 0d 19:45:02.35 2026-May-01 00:00 | 142.7489535 | +33652.023 | 0d 19:47:12.41 2026-Jun-01 00:00 | 143.0182888 | +33653.190 | 0d 19:49:26.81 2026-Jul-01 00:00 | 143.2789444 | +33654.184 | 0d 19:51:36.88 2026-Aug-01 00:00 | 143.5482959 | +33655.059 | 0d 19:53:51.29 2026-Sep-01 00:00 | 143.8176543 | +33655.918 | 0d 19:56:05.70 2026-Oct-01 00:00 | 144.0783302 | +33656.752 | 0d 19:58:15.78 2026-Nov-01 00:00 | 144.3477025 | +33657.712 | 0d 20:00:30.19 2026-Dec-01 00:00 | 144.6083933 | +33658.812 | 0d 20:02:40.28

Double-Click Within Text Area to Select ALL Text GENERAL PROGRAM INFO Computations via the NASA/JPL Horizons API This program computes both the geocentric and heliocentric statistics for Voyager 1 and Voyager 2 on the first date of each month since the year of their launches. This way, you can study the historical progress of both Voyagers over the years and perform computations in the range from 1978 to 2098. ############################################################################## SOME BASIC APPLIED DATA: * 1 AU = 149,597,870.7 km = 92,955,807.3 mi * Speed of Light = 299,792.458 km/s = 186,282.397 mi/s 1 Light Day = 25,902,068,371.2 km = 16,094,799,105.2 mi * 1 statute mile = 1.609344 km * (asterisk) Means an EXACT DEFINITION ############################################################################## COLUMNS DATA: DISTANCE_AU : Distance in Astronomical Units from Earth/Sun RAD_VEL_mi/h : Radial velocity in mi/h. -Neg = Approaching; +Pos = Receding This is the speed at which the spacecraft is approaching or re- ceding from the Earth or Sun. SPECIAL NOTE : When the Earth in its orbit is traveling in the same direction as an outgoing Voyager, the radial velocity is a negative value which means it is approaching the Earth, rather than receding. This is an illusion caused by the fact that the Earth, at a certain point in its orbit, is moving faster than the Voyager is receding away from us in the same general direction. LIGHT_TIME : Light or signal time from Spacecraft to observation point.

PHP Program by Jay Tanner of Geneva, NY, USA v1.10 - Revised: 1970-January-01-Thursday at Local Time 12:00:00 AM (UTC−05:00)