| Parameter |
Value |
| Designation |
P/2015 C1 (TOTAS-Gibbs) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2015-05-01T06:59:29.762880Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:06Z |
| Obs used |
290 |
| NEO |
- |
| M1 |
12.800 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2015-03-12.0000000 |
| e |
0.56245006 |
| q (au) |
2.892675 |
| a (au) |
6.611073 |
| i (deg) |
13.877560 |
| Ω (om, deg) |
348.862081 |
| ω (w, deg) |
178.414934 |
| M (ma, deg) |
357.083989 |
Magnitude
Scatter + Global Linear
$$
M_a = (11.583 + 4.475\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
11.583 |
| n |
4.475 |
| gf |
1.000 |
| gb |
-0.940 |
| 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
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
00:37:34.86 |
+08:32:51.8 |
HIP 3017 |
12.70 |
| 2026-06-01 12:00 |
00:37:42.60 |
+08:34:01.9 |
HIP 3017 |
10.56 |
| 2026-06-02 00:00 |
00:37:50.28 |
+08:35:11.6 |
HIP 3017 |
8.49 |
| 2026-06-02 12:00 |
00:37:57.88 |
+08:36:20.9 |
HIP 3017 |
6.54 |
| 2026-06-03 00:00 |
00:38:05.43 |
+08:37:29.9 |
HIP 3017 |
4.83 |
| 2026-06-03 12:00 |
00:38:12.90 |
+08:38:38.6 |
HIP 3017 |
3.69 |
| 2026-06-04 00:00 |
00:38:20.30 |
+08:39:46.8 |
HIP 3017 |
3.64 |
| 2026-06-04 12:00 |
00:38:27.64 |
+08:40:54.8 |
HIP 3017 |
4.70 |
| 2026-06-05 00:00 |
00:38:34.90 |
+08:42:02.3 |
HIP 3017 |
6.32 |
| 2026-06-05 12:00 |
00:38:42.10 |
+08:43:09.5 |
HIP 3017 |
8.16 |
| 2026-06-06 00:00 |
00:38:49.22 |
+08:44:16.4 |
HIP 3017 |
10.08 |
| 2026-06-06 12:00 |
00:38:56.28 |
+08:45:22.8 |
HIP 3017 |
12.04 |
| 2026-06-07 00:00 |
00:39:03.26 |
+08:46:28.9 |
HIP 3017 |
14.02 |
| 2026-06-07 12:00 |
00:39:10.17 |
+08:47:34.6 |
HIP 3017 |
15.99 |
| 2026-06-08 00:00 |
00:39:17.01 |
+08:48:39.9 |
HIP 3017 |
17.96 |
| 2026-06-08 12:00 |
00:39:23.77 |
+08:49:44.9 |
HIP 3017 |
19.92 |
| 2026-06-09 00:00 |
00:39:30.46 |
+08:50:49.4 |
HIP 3017 |
21.87 |
| 2026-06-09 12:00 |
00:39:37.08 |
+08:51:53.6 |
HIP 3017 |
23.80 |
| 2026-06-10 00:00 |
00:39:43.62 |
+08:52:57.3 |
HIP 3017 |
25.72 |
| 2026-06-10 12:00 |
00:39:50.09 |
+08:54:00.7 |
HIP 3017 |
27.62 |
| 2026-06-11 00:00 |
00:39:56.49 |
+08:55:03.6 |
HIP 3017 |
29.51 |
| 2026-06-11 12:00 |
00:40:02.80 |
+08:56:06.2 |
HIP 3215 |
29.46 |
| 2026-06-12 00:00 |
00:40:09.04 |
+08:57:08.3 |
HIP 3215 |
27.90 |
| 2026-06-12 12:00 |
00:40:15.21 |
+08:58:10.1 |
HIP 3215 |
26.38 |
| 2026-06-13 00:00 |
00:40:21.29 |
+08:59:11.4 |
HIP 3215 |
24.92 |
| 2026-06-13 12:00 |
00:40:27.30 |
+09:00:12.3 |
HIP 3215 |
23.52 |
| 2026-06-14 00:00 |
00:40:33.23 |
+09:01:12.7 |
HIP 3215 |
22.19 |
| 2026-06-14 12:00 |
00:40:39.08 |
+09:02:12.8 |
HIP 3236 |
20.76 |
| 2026-06-15 00:00 |
00:40:44.85 |
+09:03:12.4 |
HIP 3236 |
19.31 |
| 2026-06-15 12:00 |
00:40:50.54 |
+09:04:11.6 |
HIP 3236 |
17.92 |
| 2026-06-16 00:00 |
00:40:56.16 |
+09:05:10.3 |
HIP 3236 |
16.61 |
| 2026-06-16 12:00 |
00:41:01.69 |
+09:06:08.7 |
HIP 3236 |
15.38 |
| 2026-06-17 00:00 |
00:41:07.14 |
+09:07:06.5 |
HIP 3236 |
14.26 |
| 2026-06-17 12:00 |
00:41:12.51 |
+09:08:04.0 |
HIP 3236 |
13.25 |
| 2026-06-18 00:00 |
00:41:17.79 |
+09:09:00.9 |
HIP 3236 |
12.39 |
| 2026-06-18 12:00 |
00:41:23.00 |
+09:09:57.5 |
HIP 3236 |
11.68 |
| 2026-06-19 00:00 |
00:41:28.12 |
+09:10:53.5 |
HIP 3236 |
11.16 |
| 2026-06-19 12:00 |
00:41:33.16 |
+09:11:49.2 |
HIP 3236 |
10.85 |
| 2026-06-20 00:00 |
00:41:38.11 |
+09:12:44.3 |
HIP 3236 |
10.74 |
| 2026-06-20 12:00 |
00:41:42.98 |
+09:13:39.0 |
HIP 3236 |
10.84 |
| 2026-06-21 00:00 |
00:41:47.77 |
+09:14:33.3 |
HIP 3236 |
11.13 |
| 2026-06-21 12:00 |
00:41:52.48 |
+09:15:27.1 |
HIP 3236 |
11.59 |
| 2026-06-22 00:00 |
00:41:57.10 |
+09:16:20.4 |
HIP 3236 |
12.20 |