Explorer 27

LIVE
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Link to this page

https://orbinauts.com/satellites/1328

  • EXPLORER 27
  • NORAD 1328
  • 1965-032A
  • Low Earth orbit

Current orbit

Where Explorer 27 is on the world map, with the orbit it is flying
View on live map

Orbit began over the Coral Sea

Orbit ends over Australia

Sunlit since

Enters the Earth’s shadow

Past trackNext orbits

In view from you

Nobody watches Explorer 27 go over, but a receiver still asks whether it is above the horizon. Say where you are and this card answers.

Your position is rounded to about a kilometre and sent only to the Orbinauts API, to find the pass.

No brightness has been published for Explorer 27, so it is not a naked-eye satellite and no city page carries pass times for it. Nothing here estimates one.

Seeing it

There is nothing to go outside for: it is too faint to see with the naked eye from anywhere on Earth.

Timeline

  1. Launch

    Launched, on the day GCAT records. Source

Summary

Over the Atlantic Ocean LIVE

Where is Explorer 27?

At 5:35:17 PM UTC Explorer 27 was over the Atlantic Ocean (25.3° N, 45.5° W), 1,284 km up, moving at 7.14 km/s and in sunlight.

What is Explorer 27?

A satellite in low Earth orbit, in space since Apr 29, 1965.

Can I see Explorer 27?

No, not with the naked eye: no brightness has been published for Explorer 27, and nothing here estimates one.

General

Operator
NASA Goddard Space Flight Center
State
United States of America
Built by
JHU-Applied Physics Lab
Launched
Mass
55 kg
Operating
Orbit class
Low Earth orbit

From GCAT, Jonathan McDowell’s general catalogue, licensed CC BY 4.0: the operator, the state, the manufacturer, the launch day, the mass, and whether it is operating. The orbit class is read from its current elements.

Latest orbital data

Position received
5:35 PM UTC
Station time (UTC)
5:35 PM UTC
Latitude / longitude
25.3° N, 45.5° W
Altitude
1,284 km
Speed
7.14 km/s (25,686 km/h)
Course
south-east
Light
In sunlight until 6:15 PM UTC
Inclination
41.2°
Orbital period
107.5 minutes
Orbits per day
13.39
This orbit
935 to 1,296 km
In shadow
16 minutes of each orbit
In view from
Within 2,770 km of the point below it
Elements epoch
Nov 8, 2026, 6:08 AM, 11 hours old
Source
Position from Space-Track orbital elements of Nov 8, 2026, 6:08 AM, 11 hours old.

No operator publishes an ephemeris for Explorer 27, so every position here comes from its orbital elements.

In orbit

Close approaches
No close approach to Explorer 27 has been reported publicly in the past thirty days.

From Space-Track’s public conjunction messages; the latest report was issued Nov 8, 2026, 1:11 PM, 3 hours old. Only approaches serious enough to be reported publicly are listed: within three days and, for two bodies near the Earth, closer than a kilometre with a chance of a collision above 1 in 10,000, the level at which NASA moves the ISS.

See every close approach reported in orbit.

Launched with

Explorer 27 shares its launch, 1965-032, with 2 other bodies the catalogue lists in orbit.

BodyWhat it is
SCOUT X-4 R/BRocket body
SCOUT X-4 DEBDebris

Read from the international designators of the US catalogue: the year and the launch number every piece of one launch shares. A body that has come down is no longer listed.

Data and API

The current elements from Space-Track as an OMM object, epoch Nov 8, 2026, 6:08 AM, 11 hours old.

{
  "OBJECT_NAME": "EXPLORER 27",
  "OBJECT_ID": "1965-032A",
  "EPOCH": "2026-11-08T06:08:58.002432",
  "MEAN_MOTION": 13.38936973,
  "ECCENTRICITY": 0.02405343,
  "INCLINATION": 41.1819,
  "RA_OF_ASC_NODE": 120.8315,
  "ARG_OF_PERICENTER": 334.8968,
  "MEAN_ANOMALY": 24.0252,
  "EPHEMERIS_TYPE": 0,
  "CLASSIFICATION_TYPE": "U",
  "NORAD_CAT_ID": 1328,
  "ELEMENT_SET_NO": 999,
  "REV_AT_EPOCH": 765,
  "BSTAR": 0.00006434769,
  "MEAN_MOTION_DOT": -4.2e-7,
  "MEAN_MOTION_DDOT": 0
}