| 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) |
| 2026-06-01 00:00 |
04:54:27.52 |
+15:19:59.8 |
HIP 22886 |
15.49 |
| 2026-06-01 12:00 |
04:54:51.60 |
+15:20:48.6 |
HIP 22886 |
11.61 |
| 2026-06-02 00:00 |
04:55:15.71 |
+15:21:37.0 |
HIP 22886 |
9.91 |
| 2026-06-02 12:00 |
04:55:39.82 |
+15:22:25.0 |
HIP 22886 |
11.43 |
| 2026-06-03 00:00 |
04:56:03.96 |
+15:23:12.6 |
HIP 22886 |
15.22 |
| 2026-06-03 12:00 |
04:56:28.10 |
+15:23:59.9 |
HIP 22886 |
20.05 |
| 2026-06-04 00:00 |
04:56:52.26 |
+15:24:46.7 |
HIP 22967 |
24.57 |
| 2026-06-04 12:00 |
04:57:16.44 |
+15:25:33.1 |
HIP 22967 |
25.67 |
| 2026-06-05 00:00 |
04:57:40.62 |
+15:26:19.1 |
HIP 23094 |
22.84 |
| 2026-06-05 12:00 |
04:58:04.82 |
+15:27:04.6 |
HIP 23094 |
20.90 |
| 2026-06-06 00:00 |
04:58:29.03 |
+15:27:49.8 |
HIP 23094 |
20.53 |
| 2026-06-06 12:00 |
04:58:53.25 |
+15:28:34.6 |
HIP 23094 |
21.80 |
| 2026-06-07 00:00 |
04:59:17.48 |
+15:29:18.9 |
HIP 23094 |
24.47 |
| 2026-06-07 12:00 |
04:59:41.72 |
+15:30:02.9 |
HIP 23214 |
24.97 |
| 2026-06-08 00:00 |
05:00:05.97 |
+15:30:46.4 |
HIP 23353 |
22.75 |
| 2026-06-08 12:00 |
05:00:30.23 |
+15:31:29.5 |
HIP 23353 |
17.94 |
| 2026-06-09 00:00 |
05:00:54.50 |
+15:32:12.2 |
HIP 23353 |
13.98 |
| 2026-06-09 12:00 |
05:01:18.77 |
+15:32:54.5 |
HIP 23353 |
11.77 |
| 2026-06-10 00:00 |
05:01:43.05 |
+15:33:36.3 |
HIP 23353 |
12.29 |
| 2026-06-10 12:00 |
05:02:07.34 |
+15:34:17.7 |
HIP 23353 |
15.26 |
| 2026-06-11 00:00 |
05:02:31.63 |
+15:34:58.7 |
HIP 23353 |
19.61 |
| 2026-06-11 12:00 |
05:02:55.92 |
+15:35:39.3 |
HIP 23353 |
24.60 |
| 2026-06-12 00:00 |
05:03:20.22 |
+15:36:19.5 |
HIP 23607 |
21.51 |
| 2026-06-12 12:00 |
05:03:44.53 |
+15:36:59.2 |
HIP 23607 |
17.47 |
| 2026-06-13 00:00 |
05:04:08.83 |
+15:37:38.5 |
HIP 23607 |
14.71 |
| 2026-06-13 12:00 |
05:04:33.14 |
+15:38:17.4 |
HIP 23607 |
14.04 |
| 2026-06-14 00:00 |
05:04:57.45 |
+15:38:55.8 |
HIP 23607 |
15.72 |
| 2026-06-14 12:00 |
05:05:21.76 |
+15:39:33.8 |
HIP 23607 |
19.13 |
| 2026-06-15 00:00 |
05:05:46.07 |
+15:40:11.4 |
HIP 23651 |
21.37 |
| 2026-06-15 12:00 |
05:06:10.37 |
+15:40:48.6 |
HIP 23651 |
24.53 |
| 2026-06-16 00:00 |
05:06:34.68 |
+15:41:25.3 |
HIP 23847 |
22.35 |
| 2026-06-16 12:00 |
05:06:58.98 |
+15:42:01.6 |
HIP 23847 |
18.44 |
| 2026-06-17 00:00 |
05:07:23.28 |
+15:42:37.4 |
HIP 23897 |
13.42 |
| 2026-06-17 12:00 |
05:07:47.58 |
+15:43:12.8 |
HIP 23897 |
9.21 |
| 2026-06-18 00:00 |
05:08:11.87 |
+15:43:47.8 |
HIP 23897 |
7.66 |
| 2026-06-18 12:00 |
05:08:36.15 |
+15:44:22.4 |
HIP 23897 |
10.08 |
| 2026-06-19 00:00 |
05:09:00.43 |
+15:44:56.5 |
HIP 24010 |
13.52 |
| 2026-06-19 12:00 |
05:09:24.70 |
+15:45:30.1 |
HIP 24010 |
10.52 |
| 2026-06-20 00:00 |
05:09:48.97 |
+15:46:03.4 |
HIP 24010 |
10.36 |
| 2026-06-20 12:00 |
05:10:13.23 |
+15:46:36.2 |
HIP 24010 |
13.14 |
| 2026-06-21 00:00 |
05:10:37.47 |
+15:47:08.5 |
HIP 24010 |
17.50 |
| 2026-06-21 12:00 |
05:11:01.71 |
+15:47:40.5 |
HIP 24197 |
17.85 |
| 2026-06-22 00:00 |
05:11:25.94 |
+15:48:12.0 |
HIP 24197 |
15.02 |