| 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
$$
M_a = (6.341 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
6.341 |
| n |
6.000 |
| gf |
0.808 |
| gb |
-0.905 |
| k |
0.999 |
| δ90 |
5.056 |
| 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) |
| 2026-03-26 00:00 |
04:07:24.39 |
+12:44:34.7 |
HIP 19180 |
27.06 |
| 2026-03-26 12:00 |
04:07:40.50 |
+12:45:56.1 |
HIP 19180 |
27.68 |
| 2026-03-27 00:00 |
04:07:56.72 |
+12:47:17.5 |
HIP 19325 |
28.22 |
| 2026-03-27 12:00 |
04:08:13.05 |
+12:48:38.8 |
HIP 19325 |
28.65 |
| 2026-03-28 00:00 |
04:08:29.47 |
+12:50:00.2 |
HIP 19325 |
29.68 |
| 2026-03-28 12:00 |
04:08:46.00 |
+12:51:21.5 |
HIP 19325 |
31.26 |
| 2026-03-29 00:00 |
04:09:02.63 |
+12:52:42.7 |
HIP 19376 |
31.19 |
| 2026-03-29 12:00 |
04:09:19.37 |
+12:54:04.0 |
HIP 19376 |
30.14 |
| 2026-03-30 00:00 |
04:09:36.20 |
+12:55:25.2 |
HIP 19376 |
29.70 |
| 2026-03-30 12:00 |
04:09:53.13 |
+12:56:46.3 |
HIP 19376 |
29.89 |
| 2026-03-31 00:00 |
04:10:10.16 |
+12:58:07.4 |
HIP 19376 |
30.71 |
| 2026-03-31 12:00 |
04:10:27.29 |
+12:59:28.4 |
HIP 19376 |
32.12 |
| 2026-04-01 00:00 |
04:10:44.51 |
+13:00:49.4 |
HIP 19376 |
34.06 |
| 2026-04-01 12:00 |
04:11:01.83 |
+13:02:10.3 |
HIP 19376 |
36.45 |
| 2026-04-02 00:00 |
04:11:19.25 |
+13:03:31.2 |
HIP 19376 |
39.22 |
| 2026-04-02 12:00 |
04:11:36.76 |
+13:04:51.9 |
HIP 19736 |
37.91 |
| 2026-04-03 00:00 |
04:11:54.37 |
+13:06:12.6 |
HIP 19736 |
35.10 |
| 2026-04-03 12:00 |
04:12:12.07 |
+13:07:33.3 |
HIP 19709 |
32.12 |
| 2026-04-04 00:00 |
04:12:29.86 |
+13:08:53.8 |
HIP 19709 |
28.83 |
| 2026-04-04 12:00 |
04:12:47.75 |
+13:10:14.3 |
HIP 19709 |
25.91 |
| 2026-04-05 00:00 |
04:13:05.73 |
+13:11:34.6 |
HIP 19709 |
23.50 |
| 2026-04-05 12:00 |
04:13:23.80 |
+13:12:54.9 |
HIP 19709 |
21.81 |
| 2026-04-06 00:00 |
04:13:41.96 |
+13:14:15.1 |
HIP 19808 |
20.24 |
| 2026-04-06 12:00 |
04:14:00.21 |
+13:15:35.1 |
HIP 19808 |
17.58 |
| 2026-04-07 00:00 |
04:14:18.55 |
+13:16:55.1 |
HIP 19808 |
15.85 |
| 2026-04-07 12:00 |
04:14:36.98 |
+13:18:15.0 |
HIP 19808 |
15.38 |
| 2026-04-08 00:00 |
04:14:55.50 |
+13:19:34.7 |
HIP 19808 |
16.30 |
| 2026-04-08 12:00 |
04:15:14.10 |
+13:20:54.3 |
HIP 19808 |
18.42 |
| 2026-04-09 00:00 |
04:15:32.79 |
+13:22:13.8 |
HIP 19808 |
21.39 |
| 2026-04-09 12:00 |
04:15:51.57 |
+13:23:33.2 |
HIP 19808 |
24.93 |
| 2026-04-10 00:00 |
04:16:10.43 |
+13:24:52.5 |
HIP 19808 |
28.83 |
| 2026-04-10 12:00 |
04:16:29.38 |
+13:26:11.6 |
HIP 20025 |
29.93 |
| 2026-04-11 00:00 |
04:16:48.42 |
+13:27:30.6 |
HIP 20025 |
26.27 |
| 2026-04-11 12:00 |
04:17:07.53 |
+13:28:49.4 |
HIP 20025 |
23.04 |
| 2026-04-12 00:00 |
04:17:26.73 |
+13:30:08.2 |
HIP 20025 |
20.44 |
| 2026-04-12 12:00 |
04:17:46.02 |
+13:31:26.7 |
HIP 20025 |
18.76 |
| 2026-04-13 00:00 |
04:18:05.38 |
+13:32:45.1 |
HIP 20025 |
18.27 |
| 2026-04-13 12:00 |
04:18:24.82 |
+13:34:03.4 |
HIP 20150 |
14.13 |
| 2026-04-14 00:00 |
04:18:44.35 |
+13:35:21.5 |
HIP 20150 |
9.90 |
| 2026-04-14 12:00 |
04:19:03.96 |
+13:36:39.4 |
HIP 20150 |
6.70 |
| 2026-04-15 00:00 |
04:19:23.64 |
+13:37:57.2 |
HIP 20150 |
6.37 |
| 2026-04-15 12:00 |
04:19:43.40 |
+13:39:14.8 |
HIP 20150 |
9.25 |
| 2026-04-16 00:00 |
04:20:03.24 |
+13:40:32.2 |
HIP 20150 |
13.44 |