| Parameter |
Value |
| Designation |
P/2010 C1 (Scotti) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2009-12-01T14:41:54.634560Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:40Z |
| Obs used |
95 |
| NEO |
- |
| M1 |
7.300 |
| K1 |
13.750 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2010-03-09.0000000 |
| e |
0.25910909 |
| q (au) |
5.234904 |
| a (au) |
7.065687 |
| i (deg) |
9.142474 |
| Ω (om, deg) |
142.034162 |
| ω (w, deg) |
3.665920 |
| M (ma, deg) |
5.110648 |
Magnitude
Scatter + Global Linear
$$
M_a = (6.361 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
6.361 |
| n |
6.000 |
| gf |
0.807 |
| gb |
-0.905 |
| k |
0.999 |
| δ90 |
4.595 |
| 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
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
06:10:14.15 |
+15:36:06.7 |
HIP 29344 |
14.41 |
| 2026-09-20 12:00 |
06:10:24.98 |
+15:35:37.2 |
HIP 29344 |
11.76 |
| 2026-09-21 00:00 |
06:10:35.67 |
+15:35:07.5 |
HIP 29344 |
9.14 |
| 2026-09-21 12:00 |
06:10:46.21 |
+15:34:37.8 |
HIP 29344 |
6.55 |
| 2026-09-22 00:00 |
06:10:56.60 |
+15:34:07.9 |
HIP 29344 |
4.01 |
| 2026-09-22 12:00 |
06:11:06.85 |
+15:33:38.0 |
HIP 29344 |
1.52 |
| 2026-09-23 00:00 |
06:11:16.95 |
+15:33:08.0 |
HIP 29344 |
1.08 |
| 2026-09-23 12:00 |
06:11:26.90 |
+15:32:37.9 |
HIP 29344 |
3.48 |
| 2026-09-24 00:00 |
06:11:36.71 |
+15:32:07.7 |
HIP 29344 |
5.89 |
| 2026-09-24 12:00 |
06:11:46.36 |
+15:31:37.4 |
HIP 29344 |
8.27 |
| 2026-09-25 00:00 |
06:11:55.86 |
+15:31:07.1 |
HIP 29344 |
10.61 |
| 2026-09-25 12:00 |
06:12:05.22 |
+15:30:36.7 |
HIP 29344 |
12.92 |
| 2026-09-26 00:00 |
06:12:14.42 |
+15:30:06.2 |
HIP 29344 |
15.19 |
| 2026-09-26 12:00 |
06:12:23.47 |
+15:29:35.7 |
HIP 29344 |
17.43 |
| 2026-09-27 00:00 |
06:12:32.36 |
+15:29:05.1 |
HIP 29344 |
19.63 |
| 2026-09-27 12:00 |
06:12:41.11 |
+15:28:34.5 |
HIP 29344 |
21.80 |
| 2026-09-28 00:00 |
06:12:49.69 |
+15:28:03.8 |
HIP 29344 |
23.93 |
| 2026-09-28 12:00 |
06:12:58.13 |
+15:27:33.1 |
HIP 29344 |
26.03 |
| 2026-09-29 00:00 |
06:13:06.40 |
+15:27:02.3 |
HIP 29344 |
28.09 |
| 2026-09-29 12:00 |
06:13:14.52 |
+15:26:31.5 |
HIP 29344 |
30.11 |
| 2026-09-30 00:00 |
06:13:22.49 |
+15:26:00.6 |
HIP 29344 |
32.10 |
| 2026-09-30 12:00 |
06:13:30.29 |
+15:25:29.8 |
HIP 29344 |
34.05 |
| 2026-10-01 00:00 |
06:13:37.94 |
+15:24:58.8 |
HIP 29344 |
35.96 |
| 2026-10-01 12:00 |
06:13:45.43 |
+15:24:27.9 |
HIP 29779 |
35.97 |
| 2026-10-02 00:00 |
06:13:52.75 |
+15:23:57.0 |
HIP 29779 |
34.31 |
| 2026-10-02 12:00 |
06:13:59.92 |
+15:23:26.0 |
HIP 29779 |
32.71 |
| 2026-10-03 00:00 |
06:14:06.92 |
+15:22:55.0 |
HIP 29779 |
31.17 |
| 2026-10-03 12:00 |
06:14:13.76 |
+15:22:24.0 |
HIP 29779 |
29.69 |
| 2026-10-04 00:00 |
06:14:20.44 |
+15:21:53.1 |
HIP 29779 |
28.28 |
| 2026-10-04 12:00 |
06:14:26.95 |
+15:21:22.1 |
HIP 29779 |
26.94 |
| 2026-10-05 00:00 |
06:14:33.30 |
+15:20:51.1 |
HIP 29779 |
25.67 |
| 2026-10-05 12:00 |
06:14:39.49 |
+15:20:20.2 |
HIP 29779 |
24.47 |
| 2026-10-06 00:00 |
06:14:45.50 |
+15:19:49.2 |
HIP 29779 |
23.36 |
| 2026-10-06 12:00 |
06:14:51.35 |
+15:19:18.3 |
HIP 29779 |
22.34 |
| 2026-10-07 00:00 |
06:14:57.04 |
+15:18:47.4 |
HIP 29779 |
21.40 |
| 2026-10-07 12:00 |
06:15:02.55 |
+15:18:16.5 |
HIP 29779 |
20.56 |
| 2026-10-08 00:00 |
06:15:07.90 |
+15:17:45.7 |
HIP 29779 |
19.82 |
| 2026-10-08 12:00 |
06:15:13.07 |
+15:17:14.9 |
HIP 29779 |
19.18 |
| 2026-10-09 00:00 |
06:15:18.08 |
+15:16:44.2 |
HIP 29779 |
18.65 |
| 2026-10-09 12:00 |
06:15:22.91 |
+15:16:13.5 |
HIP 29779 |
18.22 |
| 2026-10-10 00:00 |
06:15:27.58 |
+15:15:42.8 |
HIP 29779 |
17.90 |
| 2026-10-10 12:00 |
06:15:32.07 |
+15:15:12.3 |
HIP 29779 |
17.68 |
| 2026-10-11 00:00 |
06:15:36.39 |
+15:14:41.7 |
HIP 29779 |
17.55 |