| Parameter |
Value |
| Designation |
352P/Skiff |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2017-06-21T01:08:15.377280Z |
| Orbit solution date (soln_date, UTC) |
2023-05-03T22:44:48Z |
| Obs used |
637 |
| NEO |
- |
| M1 |
10.900 |
| K1 |
11.750 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2012-10-28.0000000 |
| e |
0.61766865 |
| q (au) |
2.522709 |
| a (au) |
6.598227 |
| i (deg) |
21.064633 |
| Ω (om, deg) |
28.143742 |
| ω (w, deg) |
309.351302 |
| M (ma, deg) |
261.313630 |
Magnitude
Scatter + Global Linear
$$
M_a = (14.224 + 2.671\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
14.224 |
| n |
2.671 |
| gf |
0.965 |
| gb |
-0.545 |
| k |
0.800 |
| δ90 |
9.498 |
| 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 |
10:56:08.95 |
+23:36:11.0 |
HIP 53370 |
20.32 |
| 2026-06-01 12:00 |
10:56:10.23 |
+23:35:08.7 |
HIP 53476 |
20.27 |
| 2026-06-02 00:00 |
10:56:11.59 |
+23:34:06.0 |
HIP 53476 |
19.19 |
| 2026-06-02 12:00 |
10:56:13.05 |
+23:33:02.9 |
HIP 53476 |
18.11 |
| 2026-06-03 00:00 |
10:56:14.59 |
+23:31:59.4 |
HIP 53476 |
17.02 |
| 2026-06-03 12:00 |
10:56:16.23 |
+23:30:55.4 |
HIP 53476 |
15.93 |
| 2026-06-04 00:00 |
10:56:17.95 |
+23:29:51.0 |
HIP 53476 |
14.83 |
| 2026-06-04 12:00 |
10:56:19.76 |
+23:28:46.3 |
HIP 53476 |
13.73 |
| 2026-06-05 00:00 |
10:56:21.66 |
+23:27:41.1 |
HIP 53476 |
12.64 |
| 2026-06-05 12:00 |
10:56:23.65 |
+23:26:35.5 |
HIP 53476 |
11.56 |
| 2026-06-06 00:00 |
10:56:25.73 |
+23:25:29.6 |
HIP 53476 |
10.49 |
| 2026-06-06 12:00 |
10:56:27.89 |
+23:24:23.2 |
HIP 53476 |
9.46 |
| 2026-06-07 00:00 |
10:56:30.14 |
+23:23:16.4 |
HIP 53476 |
8.47 |
| 2026-06-07 12:00 |
10:56:32.48 |
+23:22:09.3 |
HIP 53476 |
7.55 |
| 2026-06-08 00:00 |
10:56:34.91 |
+23:21:01.8 |
HIP 53476 |
6.73 |
| 2026-06-08 12:00 |
10:56:37.42 |
+23:19:53.9 |
HIP 53476 |
6.08 |
| 2026-06-09 00:00 |
10:56:40.02 |
+23:18:45.6 |
HIP 53476 |
5.65 |
| 2026-06-09 12:00 |
10:56:42.71 |
+23:17:37.0 |
HIP 53476 |
5.51 |
| 2026-06-10 00:00 |
10:56:45.48 |
+23:16:28.0 |
HIP 53476 |
5.69 |
| 2026-06-10 12:00 |
10:56:48.34 |
+23:15:18.6 |
HIP 53476 |
6.17 |
| 2026-06-11 00:00 |
10:56:51.28 |
+23:14:08.9 |
HIP 53476 |
6.90 |
| 2026-06-11 12:00 |
10:56:54.31 |
+23:12:58.8 |
HIP 53476 |
7.82 |
| 2026-06-12 00:00 |
10:56:57.43 |
+23:11:48.4 |
HIP 53476 |
8.87 |
| 2026-06-12 12:00 |
10:57:00.63 |
+23:10:37.6 |
HIP 53476 |
10.02 |
| 2026-06-13 00:00 |
10:57:03.91 |
+23:09:26.4 |
HIP 53476 |
11.24 |
| 2026-06-13 12:00 |
10:57:07.28 |
+23:08:15.0 |
HIP 53476 |
12.53 |
| 2026-06-14 00:00 |
10:57:10.73 |
+23:07:03.1 |
HIP 53476 |
13.85 |
| 2026-06-14 12:00 |
10:57:14.27 |
+23:05:51.0 |
HIP 53476 |
15.22 |
| 2026-06-15 00:00 |
10:57:17.89 |
+23:04:38.5 |
HIP 53476 |
16.62 |
| 2026-06-15 12:00 |
10:57:21.59 |
+23:03:25.7 |
HIP 53476 |
18.05 |
| 2026-06-16 00:00 |
10:57:25.38 |
+23:02:12.6 |
HIP 53476 |
19.50 |
| 2026-06-16 12:00 |
10:57:29.24 |
+23:00:59.2 |
HIP 53476 |
20.98 |
| 2026-06-17 00:00 |
10:57:33.19 |
+22:59:45.4 |
HIP 53476 |
22.48 |
| 2026-06-17 12:00 |
10:57:37.22 |
+22:58:31.3 |
HIP 53476 |
24.00 |
| 2026-06-18 00:00 |
10:57:41.33 |
+22:57:17.0 |
HIP 53476 |
25.55 |
| 2026-06-18 12:00 |
10:57:45.53 |
+22:56:02.3 |
HIP 53476 |
27.11 |
| 2026-06-19 00:00 |
10:57:49.80 |
+22:54:47.4 |
HIP 53752 |
27.70 |
| 2026-06-19 12:00 |
10:57:54.15 |
+22:53:32.1 |
HIP 53752 |
26.83 |
| 2026-06-20 00:00 |
10:57:58.58 |
+22:52:16.6 |
HIP 53752 |
26.01 |
| 2026-06-20 12:00 |
10:58:03.09 |
+22:51:00.8 |
HIP 53752 |
25.25 |
| 2026-06-21 00:00 |
10:58:07.68 |
+22:49:44.7 |
HIP 53752 |
24.56 |
| 2026-06-21 12:00 |
10:58:12.35 |
+22:48:28.3 |
HIP 53752 |
23.95 |
| 2026-06-22 00:00 |
10:58:17.09 |
+22:47:11.7 |
HIP 53752 |
23.43 |