Voyagers 1 and 2 Hourly Ephemerides

Voyagers 1 and 2 Hourly Ephemerides
Built Around The NASA/JPL Horizons API

PHP Program by Jay Tanner of Geneva, NY, USA

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                  VOYAGERS 1 and 2 HOURLY EPHEMERIS
          FROM BOTH GEOCENTRIC and HELIOCENTRIC PERSPECTIVES

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VOYAGER 1:    GEOCENTRIC statistics for each hour of 2026-May-01

CALENDAR_DATE_UTC | DISTANCE_AU | RAD_VEL_mi/h |   LIGHT_TIME
------------------|-------------|--------------|----------------
2026-May-01 00:00 | 169.7549153 |   +4894.584  | 0d 23:31:48.51
2026-May-01 01:00 | 169.7549681 |   +4925.443  | 0d 23:31:48.54
2026-May-01 02:00 | 169.7550212 |   +4956.316  | 0d 23:31:48.57
2026-May-01 03:00 | 169.7550747 |   +4987.203  | 0d 23:31:48.59
2026-May-01 04:00 | 169.7551285 |   +5018.106  | 0d 23:31:48.62
2026-May-01 05:00 | 169.7551827 |   +5049.022  | 0d 23:31:48.65
2026-May-01 06:00 | 169.7552371 |   +5079.954  | 0d 23:31:48.68
2026-May-01 07:00 | 169.7552920 |   +5110.900  | 0d 23:31:48.70
2026-May-01 08:00 | 169.7553471 |   +5141.860  | 0d 23:31:48.73
2026-May-01 09:00 | 169.7554026 |   +5172.836  | 0d 23:31:48.76
2026-May-01 10:00 | 169.7554584 |   +5203.825  | 0d 23:31:48.79
2026-May-01 11:00 | 169.7555145 |   +5234.830  | 0d 23:31:48.81
2026-May-01 12:00 | 169.7555710 |   +5265.848  | 0d 23:31:48.84
2026-May-01 13:00 | 169.7556278 |   +5296.882  | 0d 23:31:48.87
2026-May-01 14:00 | 169.7556850 |   +5327.929  | 0d 23:31:48.90
2026-May-01 15:00 | 169.7557425 |   +5358.992  | 0d 23:31:48.93
2026-May-01 16:00 | 169.7558003 |   +5390.069  | 0d 23:31:48.96
2026-May-01 17:00 | 169.7558584 |   +5421.160  | 0d 23:31:48.99
2026-May-01 18:00 | 169.7559169 |   +5452.266  | 0d 23:31:49.01
2026-May-01 19:00 | 169.7559757 |   +5483.387  | 0d 23:31:49.04
2026-May-01 20:00 | 169.7560349 |   +5514.522  | 0d 23:31:49.07
2026-May-01 21:00 | 169.7560944 |   +5545.672  | 0d 23:31:49.10
2026-May-01 22:00 | 169.7561542 |   +5576.836  | 0d 23:31:49.13
2026-May-01 23:00 | 169.7562143 |   +5608.014  | 0d 23:31:49.16

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VOYAGER 2:    GEOCENTRIC statistics for each hour of 2026-May-01

CALENDAR_DATE_UTC | DISTANCE_AU | RAD_VEL_mi/h |   LIGHT_TIME
------------------|-------------|--------------|----------------
2026-May-01 00:00 | 142.4876536 |  -15462.597  | 0d 19:45:02.02
2026-May-01 01:00 | 142.4874873 |  -15450.404  | 0d 19:45:01.94
2026-May-01 02:00 | 142.4873212 |  -15438.189  | 0d 19:45:01.85
2026-May-01 03:00 | 142.4871552 |  -15425.950  | 0d 19:45:01.77
2026-May-01 04:00 | 142.4869893 |  -15413.689  | 0d 19:45:01.69
2026-May-01 05:00 | 142.4868236 |  -15401.405  | 0d 19:45:01.61
2026-May-01 06:00 | 142.4866580 |  -15389.099  | 0d 19:45:01.52
2026-May-01 07:00 | 142.4864925 |  -15376.770  | 0d 19:45:01.44
2026-May-01 08:00 | 142.4863272 |  -15364.418  | 0d 19:45:01.36
2026-May-01 09:00 | 142.4861619 |  -15352.044  | 0d 19:45:01.28
2026-May-01 10:00 | 142.4859969 |  -15339.647  | 0d 19:45:01.19
2026-May-01 11:00 | 142.4858319 |  -15327.227  | 0d 19:45:01.11
2026-May-01 12:00 | 142.4856671 |  -15314.785  | 0d 19:45:01.03
2026-May-01 13:00 | 142.4855024 |  -15302.319  | 0d 19:45:00.95
2026-May-01 14:00 | 142.4853379 |  -15289.832  | 0d 19:45:00.87
2026-May-01 15:00 | 142.4851735 |  -15277.321  | 0d 19:45:00.78
2026-May-01 16:00 | 142.4850092 |  -15264.788  | 0d 19:45:00.70
2026-May-01 17:00 | 142.4848451 |  -15252.232  | 0d 19:45:00.62
2026-May-01 18:00 | 142.4846811 |  -15239.653  | 0d 19:45:00.54
2026-May-01 19:00 | 142.4845172 |  -15227.052  | 0d 19:45:00.46
2026-May-01 20:00 | 142.4843534 |  -15214.428  | 0d 19:45:00.37
2026-May-01 21:00 | 142.4841899 |  -15201.781  | 0d 19:45:00.29
2026-May-01 22:00 | 142.4840264 |  -15189.112  | 0d 19:45:00.21
2026-May-01 23:00 | 142.4838631 |  -15176.420  | 0d 19:45:00.13


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HELIOCENTRIC

VOYAGER 1:  HELIOCENTRIC statistics for each hour of 2026-May-01

CALENDAR_DATE_UTC | DISTANCE_AU | RAD_VEL_mi/h |   LIGHT_TIME
------------------|-------------|--------------|----------------
2026-May-01 00:00 | 170.4157222 |  +37764.906  | 0d 23:37:18.26
2026-May-01 01:00 | 170.4161285 |  +37764.905  | 0d 23:37:18.46
2026-May-01 02:00 | 170.4165347 |  +37764.905  | 0d 23:37:18.67
2026-May-01 03:00 | 170.4169410 |  +37764.905  | 0d 23:37:18.87
2026-May-01 04:00 | 170.4173472 |  +37764.905  | 0d 23:37:19.07
2026-May-01 05:00 | 170.4177534 |  +37764.905  | 0d 23:37:19.27
2026-May-01 06:00 | 170.4181597 |  +37764.905  | 0d 23:37:19.48
2026-May-01 07:00 | 170.4185659 |  +37764.904  | 0d 23:37:19.68
2026-May-01 08:00 | 170.4189722 |  +37764.904  | 0d 23:37:19.88
2026-May-01 09:00 | 170.4193784 |  +37764.904  | 0d 23:37:20.09
2026-May-01 10:00 | 170.4197847 |  +37764.904  | 0d 23:37:20.29
2026-May-01 11:00 | 170.4201909 |  +37764.904  | 0d 23:37:20.49
2026-May-01 12:00 | 170.4205972 |  +37764.904  | 0d 23:37:20.69
2026-May-01 13:00 | 170.4210034 |  +37764.904  | 0d 23:37:20.90
2026-May-01 14:00 | 170.4214096 |  +37764.904  | 0d 23:37:21.10
2026-May-01 15:00 | 170.4218159 |  +37764.903  | 0d 23:37:21.30
2026-May-01 16:00 | 170.4222221 |  +37764.903  | 0d 23:37:21.50
2026-May-01 17:00 | 170.4226284 |  +37764.903  | 0d 23:37:21.71
2026-May-01 18:00 | 170.4230346 |  +37764.903  | 0d 23:37:21.91
2026-May-01 19:00 | 170.4234409 |  +37764.903  | 0d 23:37:22.11
2026-May-01 20:00 | 170.4238471 |  +37764.903  | 0d 23:37:22.31
2026-May-01 21:00 | 170.4242534 |  +37764.902  | 0d 23:37:22.52
2026-May-01 22:00 | 170.4246596 |  +37764.902  | 0d 23:37:22.72
2026-May-01 23:00 | 170.4250658 |  +37764.902  | 0d 23:37:22.92

----------------------------------------------------------------
VOYAGER 2:  HELIOCENTRIC statistics for each hour of 2026-May-01

CALENDAR_DATE_UTC | DISTANCE_AU | RAD_VEL_mi/h |   LIGHT_TIME
------------------|-------------|--------------|----------------
2026-May-01 00:00 | 142.7489535 |  +33652.023  | 0d 19:47:12.41
2026-May-01 01:00 | 142.7493155 |  +33652.025  | 0d 19:47:12.59
2026-May-01 02:00 | 142.7496775 |  +33652.026  | 0d 19:47:12.77
2026-May-01 03:00 | 142.7500395 |  +33652.028  | 0d 19:47:12.95
2026-May-01 04:00 | 142.7504015 |  +33652.030  | 0d 19:47:13.13
2026-May-01 05:00 | 142.7507635 |  +33652.031  | 0d 19:47:13.31
2026-May-01 06:00 | 142.7511255 |  +33652.033  | 0d 19:47:13.49
2026-May-01 07:00 | 142.7514875 |  +33652.034  | 0d 19:47:13.68
2026-May-01 08:00 | 142.7518495 |  +33652.036  | 0d 19:47:13.86
2026-May-01 09:00 | 142.7522115 |  +33652.037  | 0d 19:47:14.04
2026-May-01 10:00 | 142.7525735 |  +33652.039  | 0d 19:47:14.22
2026-May-01 11:00 | 142.7529355 |  +33652.041  | 0d 19:47:14.40
2026-May-01 12:00 | 142.7532975 |  +33652.042  | 0d 19:47:14.58
2026-May-01 13:00 | 142.7536595 |  +33652.043  | 0d 19:47:14.76
2026-May-01 14:00 | 142.7540215 |  +33652.045  | 0d 19:47:14.94
2026-May-01 15:00 | 142.7543835 |  +33652.047  | 0d 19:47:15.12
2026-May-01 16:00 | 142.7547455 |  +33652.048  | 0d 19:47:15.30
2026-May-01 17:00 | 142.7551075 |  +33652.050  | 0d 19:47:15.48
2026-May-01 18:00 | 142.7554695 |  +33652.051  | 0d 19:47:15.66
2026-May-01 19:00 | 142.7558315 |  +33652.053  | 0d 19:47:15.84
2026-May-01 20:00 | 142.7561935 |  +33652.054  | 0d 19:47:16.02
2026-May-01 21:00 | 142.7565556 |  +33652.056  | 0d 19:47:16.20
2026-May-01 22:00 | 142.7569176 |  +33652.058  | 0d 19:47:16.38
2026-May-01 23:00 | 142.7572796 |  +33652.059  | 0d 19:47:16.57

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                               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 for any date since the date of their launches.

It can  be used to  compute their  historical positional  statistics since the
date of launch to the current date and  can also be used to find the projected
dates when the two Voyagers reach a given distance from both the Earth and the
Sun, such as when they will be one light day distant from them.

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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

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COLUMNS DATA
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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
v1.00 - Revised: 1970-January-01-Thursday at Local Time 12:00:00 AM (UTC−05:00)