192P/Shoemaker-Levy 1
| Parameter |
Value |
| Designation |
192P/Shoemaker-Levy 1 |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2007-12-14T02:44:52.307520Z |
| Orbit solution date (soln_date, UTC) |
2025-03-06T13:42:28Z |
| Obs used |
200 |
| NEO |
- |
| M1 |
11.500 |
| K1 |
18.000 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2014-08-19.0000000 |
| e |
0.77201142 |
| q (au) |
1.476460 |
| a (au) |
6.476025 |
| i (deg) |
24.543649 |
| Ω (om, deg) |
51.586767 |
| ω (w, deg) |
313.081833 |
| M (ma, deg) |
145.918634 |
Magnitude
Scatter + Global Linear
$$
M_a = (11.581 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
11.581 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.502 |
| 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) |
| 2026-02-03 00:00 |
10:18:42.17 |
+42:16:34.1 |
HIP 50679 |
25.43 |
| 2026-02-03 12:00 |
10:18:20.43 |
+42:18:35.7 |
HIP 50383 |
23.03 |
| 2026-02-04 00:00 |
10:17:58.60 |
+42:20:35.6 |
HIP 50383 |
19.36 |
| 2026-02-04 12:00 |
10:17:36.69 |
+42:22:33.8 |
HIP 50383 |
16.13 |
| 2026-02-05 00:00 |
10:17:14.69 |
+42:24:30.3 |
HIP 50383 |
13.67 |
| 2026-02-05 12:00 |
10:16:52.62 |
+42:26:25.1 |
HIP 50383 |
12.43 |
| 2026-02-06 00:00 |
10:16:30.47 |
+42:28:18.1 |
HIP 50383 |
12.79 |
| 2026-02-06 12:00 |
10:16:08.24 |
+42:30:09.4 |
HIP 50383 |
14.61 |
| 2026-02-07 00:00 |
10:15:45.95 |
+42:31:58.9 |
HIP 50302 |
16.66 |
| 2026-02-07 12:00 |
10:15:23.59 |
+42:33:46.6 |
HIP 50302 |
16.84 |
| 2026-02-08 00:00 |
10:15:01.17 |
+42:35:32.5 |
HIP 50302 |
18.19 |
| 2026-02-08 12:00 |
10:14:38.70 |
+42:37:16.6 |
HIP 50302 |
20.47 |
| 2026-02-09 00:00 |
10:14:16.17 |
+42:38:58.8 |
HIP 50302 |
23.42 |
| 2026-02-09 12:00 |
10:13:53.59 |
+42:40:39.2 |
HIP 50302 |
26.80 |
| 2026-02-10 00:00 |
10:13:30.97 |
+42:42:17.7 |
HIP 49954 |
25.79 |
| 2026-02-10 12:00 |
10:13:08.30 |
+42:43:54.3 |
HIP 49954 |
24.54 |
| 2026-02-11 00:00 |
10:12:45.59 |
+42:45:29.0 |
HIP 49954 |
24.05 |
| 2026-02-11 12:00 |
10:12:22.86 |
+42:47:01.8 |
HIP 49954 |
24.35 |
| 2026-02-12 00:00 |
10:12:00.09 |
+42:48:32.7 |
HIP 49954 |
25.40 |
| 2026-02-12 12:00 |
10:11:37.29 |
+42:50:01.7 |
HIP 49954 |
27.13 |
| 2026-02-13 00:00 |
10:11:14.47 |
+42:51:28.7 |
HIP 49954 |
29.40 |
| 2026-02-13 12:00 |
10:10:51.64 |
+42:52:53.7 |
HIP 49795 |
29.82 |
| 2026-02-14 00:00 |
10:10:28.79 |
+42:54:16.7 |
HIP 49795 |
27.22 |
| 2026-02-14 12:00 |
10:10:05.93 |
+42:55:37.8 |
HIP 49795 |
25.15 |
| 2026-02-15 00:00 |
10:09:43.06 |
+42:56:56.9 |
HIP 49630 |
22.13 |
| 2026-02-15 12:00 |
10:09:20.19 |
+42:58:13.9 |
HIP 49630 |
17.78 |
| 2026-02-16 00:00 |
10:08:57.33 |
+42:59:29.0 |
HIP 49630 |
13.46 |
| 2026-02-16 12:00 |
10:08:34.47 |
+43:00:42.0 |
HIP 49630 |
9.19 |
| 2026-02-17 00:00 |
10:08:11.62 |
+43:01:53.0 |
HIP 49630 |
5.05 |
| 2026-02-17 12:00 |
10:07:48.78 |
+43:03:01.9 |
HIP 49630 |
2.05 |
| 2026-02-18 00:00 |
10:07:25.96 |
+43:04:08.9 |
HIP 49630 |
4.49 |
| 2026-02-18 12:00 |
10:07:03.16 |
+43:05:13.7 |
HIP 49630 |
8.54 |
| 2026-02-19 00:00 |
10:06:40.39 |
+43:06:16.5 |
HIP 49630 |
12.74 |
| 2026-02-19 12:00 |
10:06:17.65 |
+43:07:17.2 |
HIP 49630 |
16.96 |
| 2026-02-20 00:00 |
10:05:54.95 |
+43:08:15.9 |
HIP 49630 |
21.19 |
| 2026-02-20 12:00 |
10:05:32.28 |
+43:09:12.5 |
HIP 49630 |
25.41 |
| 2026-02-21 00:00 |
10:05:09.65 |
+43:10:07.0 |
HIP 49489 |
26.90 |
| 2026-02-21 12:00 |
10:04:47.07 |
+43:10:59.4 |
HIP 49489 |
28.15 |
| 2026-02-22 00:00 |
10:04:24.54 |
+43:11:49.7 |
HIP 49489 |
29.97 |
| 2026-02-22 12:00 |
10:04:02.07 |
+43:12:38.0 |
HIP 49116 |
29.19 |
| 2026-02-23 00:00 |
10:03:39.65 |
+43:13:24.2 |
HIP 49116 |
25.45 |
| 2026-02-23 12:00 |
10:03:17.29 |
+43:14:08.3 |
HIP 49116 |
21.86 |
| 2026-02-24 00:00 |
10:02:55.00 |
+43:14:50.3 |
HIP 49116 |
18.49 |