| Parameter |
Value |
| Designation |
410P/NEAT-LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2021-06-23T16:08:47.518080Z |
| Orbit solution date (soln_date, UTC) |
2024-10-10T17:20:56Z |
| Obs used |
272 |
| NEO |
- |
| M1 |
15.300 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2003-11-19T08:35:26.880000Z |
| Discovery magnitude (MPC) |
19.40 |
| Discovery observatory (MPC) |
644 · Palomar Mountain/NEAT |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2020-10-23.0000000 |
| e |
0.51001407 |
| q (au) |
3.246901 |
| a (au) |
6.626518 |
| i (deg) |
9.393692 |
| Ω (om, deg) |
139.982329 |
| ω (w, deg) |
313.113433 |
| M (ma, deg) |
345.920638 |
Magnitude
Scatter + Global Linear
$$
M_a = (14.656 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
14.656 |
| n |
2.000 |
| gf |
0.995 |
| gb |
-0.926 |
| k |
1.000 |
| δ90 |
10.000 |
| Parameter |
Symbol |
Range |
Description |
| Absolute magnitude at 1 AU from Sun and Earth |
H0 |
-5 to 20 |
Intrinsic brightness of the comet |
| Photometric slope parameter |
n |
2 to 6 |
Rate of brightness change with heliocentric distance |
| Forward scattering asymmetry factor |
gf |
0.8 to 1 |
Degree of forward scattering |
| Backward scattering asymmetry factor |
gb |
-1 to -0.5 |
Degree of backward scattering |
| Partitioning coefficient |
k |
0.8 to 1 |
Ratio between forward/backward scattering contributions |
| Dust-to-gas brightness ratio |
δ90 |
1 to 10 |
Relative contribution of dust scattering to gas emission |
Reference: EPSC-DPS2025-160
Residuals (Piecewise)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| Start (UTC) |
End (UTC) |
a |
b |
| 2020-08-29 |
2021-02-13 |
+16.5564 |
-8.722 |
| 2021-11-07 |
2022-04-29 |
-18.9461 |
+10.146 |
log10 r = log10(heliocentric distance / AU), Δ = geocentric distance (AU)
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
15:54:57.62 |
-11:28:26.9 |
HIP 77878 |
25.43 |
| 2026-09-20 12:00 |
15:55:06.58 |
-11:29:21.7 |
HIP 77878 |
27.23 |
| 2026-09-21 00:00 |
15:55:15.62 |
-11:30:16.5 |
HIP 77878 |
29.13 |
| 2026-09-21 12:00 |
15:55:24.74 |
-11:31:11.3 |
HIP 77878 |
31.10 |
| 2026-09-22 00:00 |
15:55:33.93 |
-11:32:06.3 |
HIP 77878 |
33.15 |
| 2026-09-22 12:00 |
15:55:43.21 |
-11:33:01.2 |
HIP 77878 |
35.26 |
| 2026-09-23 00:00 |
15:55:52.57 |
-11:33:56.3 |
HIP 77878 |
37.43 |
| 2026-09-23 12:00 |
15:56:02.01 |
-11:34:51.4 |
HIP 77878 |
39.64 |
| 2026-09-24 00:00 |
15:56:11.52 |
-11:35:46.5 |
HIP 77878 |
41.90 |
| 2026-09-24 12:00 |
15:56:21.12 |
-11:36:41.7 |
HIP 77878 |
44.20 |
| 2026-09-25 00:00 |
15:56:30.79 |
-11:37:37.0 |
HIP 78122 |
45.27 |
| 2026-09-25 12:00 |
15:56:40.54 |
-11:38:32.3 |
HIP 78122 |
45.76 |
| 2026-09-26 00:00 |
15:56:50.36 |
-11:39:27.6 |
HIP 78122 |
46.39 |
| 2026-09-26 12:00 |
15:57:00.26 |
-11:40:23.0 |
HIP 78122 |
47.14 |
| 2026-09-27 00:00 |
15:57:10.23 |
-11:41:18.4 |
HIP 78122 |
48.03 |
| 2026-09-27 12:00 |
15:57:20.28 |
-11:42:13.8 |
HIP 78122 |
49.05 |
| 2026-09-28 00:00 |
15:57:30.41 |
-11:43:09.2 |
HIP 78122 |
50.18 |
| 2026-09-28 12:00 |
15:57:40.61 |
-11:44:04.7 |
HIP 78122 |
51.43 |
| 2026-09-29 00:00 |
15:57:50.88 |
-11:45:00.2 |
HIP 78293 |
52.38 |
| 2026-09-29 12:00 |
15:58:01.22 |
-11:45:55.7 |
HIP 78293 |
52.33 |
| 2026-09-30 00:00 |
15:58:11.64 |
-11:46:51.3 |
HIP 78484 |
50.72 |
| 2026-09-30 12:00 |
15:58:22.13 |
-11:47:46.8 |
HIP 78484 |
48.00 |
| 2026-10-01 00:00 |
15:58:32.69 |
-11:48:42.4 |
HIP 78484 |
45.27 |
| 2026-10-01 12:00 |
15:58:43.32 |
-11:49:38.0 |
HIP 78484 |
42.53 |
| 2026-10-02 00:00 |
15:58:54.03 |
-11:50:33.5 |
HIP 78484 |
39.78 |
| 2026-10-02 12:00 |
15:59:04.80 |
-11:51:29.1 |
HIP 78484 |
37.01 |
| 2026-10-03 00:00 |
15:59:15.64 |
-11:52:24.7 |
HIP 78484 |
34.23 |
| 2026-10-03 12:00 |
15:59:26.56 |
-11:53:20.3 |
HIP 78484 |
31.45 |
| 2026-10-04 00:00 |
15:59:37.54 |
-11:54:15.8 |
HIP 78484 |
28.66 |
| 2026-10-04 12:00 |
15:59:48.59 |
-11:55:11.4 |
HIP 78484 |
25.86 |
| 2026-10-05 00:00 |
15:59:59.71 |
-11:56:06.9 |
HIP 78484 |
23.07 |
| 2026-10-05 12:00 |
16:00:10.89 |
-11:57:02.5 |
HIP 78484 |
20.28 |
| 2026-10-06 00:00 |
16:00:22.15 |
-11:57:58.0 |
HIP 78484 |
17.52 |
| 2026-10-06 12:00 |
16:00:33.47 |
-11:58:53.5 |
HIP 78484 |
14.80 |
| 2026-10-07 00:00 |
16:00:44.85 |
-11:59:48.9 |
HIP 78484 |
12.16 |
| 2026-10-07 12:00 |
16:00:56.30 |
-12:00:44.4 |
HIP 78484 |
9.67 |
| 2026-10-08 00:00 |
16:01:07.82 |
-12:01:39.7 |
HIP 78484 |
7.53 |
| 2026-10-08 12:00 |
16:01:19.40 |
-12:02:35.1 |
HIP 78484 |
6.12 |
| 2026-10-09 00:00 |
16:01:31.04 |
-12:03:30.4 |
HIP 78484 |
6.00 |
| 2026-10-09 12:00 |
16:01:42.75 |
-12:04:25.7 |
HIP 78484 |
7.25 |
| 2026-10-10 00:00 |
16:01:54.52 |
-12:05:20.9 |
HIP 78484 |
9.36 |
| 2026-10-10 12:00 |
16:02:06.35 |
-12:06:16.1 |
HIP 78484 |
11.88 |
| 2026-10-11 00:00 |
16:02:18.25 |
-12:07:11.3 |
HIP 78484 |
14.61 |