| Parameter |
Value |
| Designation |
P/2010 H5 (Scotti) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2010-04-17T17:01:04.771200Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:42Z |
| Obs used |
67 |
| NEO |
- |
| M1 |
9.600 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2010-05-23.0000000 |
| e |
0.15644880 |
| q (au) |
6.025951 |
| a (au) |
7.143551 |
| i (deg) |
14.087184 |
| Ω (om, deg) |
24.899476 |
| ω (w, deg) |
175.129940 |
| M (ma, deg) |
1.821779 |
Magnitude
Scatter + Global Linear
$$
M_a = (8.141 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
8.141 |
| n |
6.000 |
| gf |
0.975 |
| gb |
-0.689 |
| k |
0.800 |
| δ90 |
9.999 |
| 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 |
08:25:11.21 |
+32:12:33.3 |
HIP 41248 |
4.21 |
| 2026-06-01 12:00 |
08:25:29.19 |
+32:10:51.2 |
HIP 41248 |
8.28 |
| 2026-06-02 00:00 |
08:25:47.25 |
+32:09:09.0 |
HIP 41248 |
12.43 |
| 2026-06-02 12:00 |
08:26:05.39 |
+32:07:26.7 |
HIP 41423 |
11.66 |
| 2026-06-03 00:00 |
08:26:23.62 |
+32:05:44.3 |
HIP 41423 |
9.23 |
| 2026-06-03 12:00 |
08:26:41.93 |
+32:04:01.7 |
HIP 41423 |
8.37 |
| 2026-06-04 00:00 |
08:27:00.33 |
+32:02:19.1 |
HIP 41490 |
8.66 |
| 2026-06-04 12:00 |
08:27:18.81 |
+32:00:36.4 |
HIP 41490 |
4.80 |
| 2026-06-05 00:00 |
08:27:37.37 |
+31:58:53.6 |
HIP 41490 |
2.78 |
| 2026-06-05 12:00 |
08:27:56.01 |
+31:57:10.6 |
HIP 41490 |
5.41 |
| 2026-06-06 00:00 |
08:28:14.73 |
+31:55:27.6 |
HIP 41490 |
9.40 |
| 2026-06-06 12:00 |
08:28:33.53 |
+31:53:44.5 |
HIP 41490 |
13.61 |
| 2026-06-07 00:00 |
08:28:52.41 |
+31:52:01.3 |
HIP 41657 |
14.64 |
| 2026-06-07 12:00 |
08:29:11.37 |
+31:50:17.9 |
HIP 41657 |
13.97 |
| 2026-06-08 00:00 |
08:29:30.40 |
+31:48:34.5 |
HIP 41657 |
14.64 |
| 2026-06-08 12:00 |
08:29:49.52 |
+31:46:51.0 |
HIP 41657 |
16.50 |
| 2026-06-09 00:00 |
08:30:08.70 |
+31:45:07.4 |
HIP 41657 |
19.22 |
| 2026-06-09 12:00 |
08:30:27.97 |
+31:43:23.7 |
HIP 41685 |
22.28 |
| 2026-06-10 00:00 |
08:30:47.30 |
+31:41:39.9 |
HIP 41685 |
22.55 |
| 2026-06-10 12:00 |
08:31:06.71 |
+31:39:56.0 |
HIP 41685 |
23.69 |
| 2026-06-11 00:00 |
08:31:26.20 |
+31:38:12.1 |
HIP 41962 |
23.63 |
| 2026-06-11 12:00 |
08:31:45.75 |
+31:36:28.0 |
HIP 41962 |
19.14 |
| 2026-06-12 00:00 |
08:32:05.38 |
+31:34:43.9 |
HIP 41962 |
14.63 |
| 2026-06-12 12:00 |
08:32:25.08 |
+31:32:59.7 |
HIP 41962 |
10.12 |
| 2026-06-13 00:00 |
08:32:44.85 |
+31:31:15.4 |
HIP 41962 |
5.65 |
| 2026-06-13 12:00 |
08:33:04.68 |
+31:29:31.0 |
HIP 41962 |
1.72 |
| 2026-06-14 00:00 |
08:33:24.59 |
+31:27:46.5 |
HIP 41962 |
3.98 |
| 2026-06-14 12:00 |
08:33:44.56 |
+31:26:01.9 |
HIP 41962 |
8.43 |
| 2026-06-15 00:00 |
08:34:04.60 |
+31:24:17.3 |
HIP 41962 |
13.00 |
| 2026-06-15 12:00 |
08:34:24.71 |
+31:22:32.6 |
HIP 41962 |
17.61 |
| 2026-06-16 00:00 |
08:34:44.88 |
+31:20:47.9 |
HIP 42150 |
19.05 |
| 2026-06-16 12:00 |
08:35:05.12 |
+31:19:03.0 |
HIP 42150 |
15.64 |
| 2026-06-17 00:00 |
08:35:25.42 |
+31:17:18.1 |
HIP 42150 |
13.02 |
| 2026-06-17 12:00 |
08:35:45.78 |
+31:15:33.1 |
HIP 42150 |
11.77 |
| 2026-06-18 00:00 |
08:36:06.20 |
+31:13:48.1 |
HIP 42150 |
12.32 |
| 2026-06-18 12:00 |
08:36:26.68 |
+31:12:03.0 |
HIP 42150 |
14.48 |
| 2026-06-19 00:00 |
08:36:47.23 |
+31:10:17.8 |
HIP 42150 |
17.68 |
| 2026-06-19 12:00 |
08:37:07.83 |
+31:08:32.6 |
HIP 42391 |
19.64 |
| 2026-06-20 00:00 |
08:37:28.49 |
+31:06:47.3 |
HIP 42391 |
15.46 |
| 2026-06-20 12:00 |
08:37:49.21 |
+31:05:02.0 |
HIP 42391 |
11.70 |
| 2026-06-21 00:00 |
08:38:09.99 |
+31:03:16.6 |
HIP 42391 |
8.97 |
| 2026-06-21 12:00 |
08:38:30.82 |
+31:01:31.2 |
HIP 42391 |
8.33 |
| 2026-06-22 00:00 |
08:38:51.71 |
+30:59:45.7 |
HIP 42391 |
10.22 |