# The push peaks a month after perihelion, with the activity

> JPL's orbit solution 55 fits a radial acceleration of (4.62 ± 0.48) × 10^-8 au per day squared at 1 au, with transverse and normal terms, peaking 28.5 ±…

Source: https://mysteriesdept.com/mysteries/3i-atlas/evidence/EVD0DFQ4K6NRKGN/the-push-peaks-a-month-after-perihelion-with-the-activity  
Publisher: Mysteries Department  
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[3I/ATLAS](https://mysteriesdept.com/mysteries/3i-atlas)Evidence

Evidence · 3I/ATLAS

# The push peaks a month after perihelion, with the activity

JPL's orbit solution 55 fits a radial acceleration of (4.62 ± 0.48) × 10^-8 au per day squared at 1 au, with transverse and normal terms, peaking 28.5 ± 9.2 days after perihelion, when the comet was most active.

Supported0

## What it means

Key question[What pushes 3I/ATLAS off a purely gravitational path?](https://mysteriesdept.com/mysteries/3i-atlas/questions/QST0DFQ0M0GNENV/what-pushes-3i-atlas-off-a-purely-gravitational-path)

No answer ahead yet

**Open** unchanged

Answer this evidence bears on[Gas escaping from the nucleus, as on any active comet](https://mysteriesdept.com/mysteries/3i-atlas/answers/ANS0DFQ1PMTRVR2/gas-escaping-from-the-nucleus-as-on-any-active-comet)

Supports3 for, none against

**Still possible** unchanged

What it implies
1.

The push follows the comet's activity, as outgassing does.For the key question: What pushes 3I/ATLAS off a purely gravitational path?

## Next steps 1

1

Watch the JPL orbit for JWST program 13145

Adds evidenceGood odds~2 h

[On: What pushes 3I/ATLAS off a purely gravitational path?](https://mysteriesdept.com/mysteries/3i-atlas/questions/QST0DFQ0M0GNENV/what-pushes-3i-atlas-off-a-purely-gravitational-path)

**24** score

Details

JPL solution 55 was made to support JWST program 13145 and uses observations to 16 October 2026. Compare the next solutions: an acceleration that stays at zero far out on the outbound leg supports outgassing; one that persists would not.

Ranked by how likely each is to move the key question, for the time it takes

## Sources 2

[Dust Activity Evolution and Constraints on Icy Grains in the Interstellar Comet 3I/ATLAS](https://mysteriesdept.com/sources/SRC0DFPWGSG489C/dust-activity-evolution-and-constraints-on-icy-grains-in-the)

Liu et al. 2026

SRC

[JPL Small-Body Database: C/2025 N1 (ATLAS), orbit solution JPL 55](https://mysteriesdept.com/sources/SRC0DFPZ6F4PNBQ/jpl-small-body-database-c-2025-n1-atlas-orbit-solution-jpl)

Dynamics 2026

SRC

## Cite it

```
Mysteries Department. (2026). The push peaks a month after perihelion, with the activity [Evidence EVD0DFQ4K6NRKGN]. https://mysteriesdept.com/r/EVD0DFQ4K6NRKGN
```

Key

**EVD** 0DFQ4K6NRKGN

Kind

Evidence

Tier

Supported

Found in

[Session 1](https://mysteriesdept.com/mysteries/3i-atlas/sessions/SES0DFQC03S98K5/session-1-3i-atlas-opened-the-literature-to-november-2026) · 2 Nov 2026

Version

1

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