| Parameter |
Value |
| Designation |
371P/LINEAR-Skiff |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2010-03-26T21:29:58.243200Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:28:37Z |
| Obs used |
175 |
| NEO |
- |
| M1 |
4.300 |
| K1 |
41.000 |
| PC |
0.030 |
| Discovery observation (MPC, UTC) |
2018-09-07T02:02:24.864000Z |
| Discovery magnitude (MPC) |
19.80 G |
| Discovery observatory (MPC) |
J04 · ESA Optical Ground Station, Tenerife |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2008-07-01.0000000 |
| e |
0.47798664 |
| q (au) |
2.173642 |
| a (au) |
4.163959 |
| i (deg) |
17.413290 |
| Ω (om, deg) |
67.410638 |
| ω (w, deg) |
308.643638 |
| M (ma, deg) |
286.470379 |
Magnitude
Scatter + Global Linear
$$
M_a = (16.579 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
16.579 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
0.999 |
| 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 |
20:11:11.15 |
-34:15:59.8 |
HIP 99591 |
19.17 |
| 2026-06-01 12:00 |
20:11:10.61 |
-34:19:34.2 |
HIP 99591 |
18.59 |
| 2026-06-02 00:00 |
20:11:09.71 |
-34:23:09.8 |
HIP 99591 |
18.76 |
| 2026-06-02 12:00 |
20:11:08.45 |
-34:26:46.7 |
HIP 99326 |
19.48 |
| 2026-06-03 00:00 |
20:11:06.84 |
-34:30:24.8 |
HIP 99326 |
18.50 |
| 2026-06-03 12:00 |
20:11:04.87 |
-34:34:04.0 |
HIP 99326 |
18.14 |
| 2026-06-04 00:00 |
20:11:02.54 |
-34:37:44.5 |
HIP 99326 |
18.46 |
| 2026-06-04 12:00 |
20:10:59.86 |
-34:41:26.1 |
HIP 99326 |
19.44 |
| 2026-06-05 00:00 |
20:10:56.81 |
-34:45:08.8 |
HIP 99326 |
21.00 |
| 2026-06-05 12:00 |
20:10:53.39 |
-34:48:52.7 |
HIP 99326 |
23.03 |
| 2026-06-06 00:00 |
20:10:49.62 |
-34:52:37.6 |
HIP 99605 |
24.72 |
| 2026-06-06 12:00 |
20:10:45.48 |
-34:56:23.7 |
HIP 99356 |
25.53 |
| 2026-06-07 00:00 |
20:10:40.97 |
-35:00:10.7 |
HIP 99356 |
21.67 |
| 2026-06-07 12:00 |
20:10:36.09 |
-35:03:58.9 |
HIP 99356 |
17.79 |
| 2026-06-08 00:00 |
20:10:30.85 |
-35:07:48.0 |
HIP 99356 |
13.88 |
| 2026-06-08 12:00 |
20:10:25.24 |
-35:11:38.1 |
HIP 99356 |
9.96 |
| 2026-06-09 00:00 |
20:10:19.26 |
-35:15:29.1 |
HIP 99356 |
6.10 |
| 2026-06-09 12:00 |
20:10:12.90 |
-35:19:21.1 |
HIP 99356 |
2.73 |
| 2026-06-10 00:00 |
20:10:06.18 |
-35:23:14.0 |
HIP 99356 |
3.29 |
| 2026-06-10 12:00 |
20:09:59.08 |
-35:27:07.7 |
HIP 99356 |
6.95 |
| 2026-06-11 00:00 |
20:09:51.62 |
-35:31:02.3 |
HIP 99356 |
10.99 |
| 2026-06-11 12:00 |
20:09:43.77 |
-35:34:57.7 |
HIP 99356 |
15.15 |
| 2026-06-12 00:00 |
20:09:35.56 |
-35:38:53.9 |
HIP 99356 |
19.37 |
| 2026-06-12 12:00 |
20:09:26.97 |
-35:42:50.8 |
HIP 99345 |
19.70 |
| 2026-06-13 00:00 |
20:09:18.01 |
-35:46:48.5 |
HIP 99345 |
16.48 |
| 2026-06-13 12:00 |
20:09:08.68 |
-35:50:46.8 |
HIP 99345 |
13.92 |
| 2026-06-14 00:00 |
20:08:58.98 |
-35:54:45.8 |
HIP 99345 |
12.48 |
| 2026-06-14 12:00 |
20:08:48.90 |
-35:58:45.4 |
HIP 99345 |
12.62 |
| 2026-06-15 00:00 |
20:08:38.45 |
-36:02:45.5 |
HIP 99345 |
14.31 |
| 2026-06-15 12:00 |
20:08:27.63 |
-36:06:46.2 |
HIP 99345 |
17.14 |
| 2026-06-16 00:00 |
20:08:16.44 |
-36:10:47.4 |
HIP 99345 |
20.67 |
| 2026-06-16 12:00 |
20:08:04.89 |
-36:14:49.1 |
HIP 99296 |
22.05 |
| 2026-06-17 00:00 |
20:07:52.96 |
-36:18:51.2 |
HIP 99296 |
21.42 |
| 2026-06-17 12:00 |
20:07:40.67 |
-36:22:53.6 |
HIP 99296 |
21.87 |
| 2026-06-18 00:00 |
20:07:28.01 |
-36:26:56.4 |
HIP 98990 |
20.71 |
| 2026-06-18 12:00 |
20:07:14.99 |
-36:30:59.5 |
HIP 98990 |
17.89 |
| 2026-06-19 00:00 |
20:07:01.61 |
-36:35:02.9 |
HIP 98990 |
16.00 |
| 2026-06-19 12:00 |
20:06:47.87 |
-36:39:06.5 |
HIP 98990 |
15.41 |
| 2026-06-20 00:00 |
20:06:33.77 |
-36:43:10.2 |
HIP 98990 |
16.30 |
| 2026-06-20 12:00 |
20:06:19.31 |
-36:47:14.1 |
HIP 98938 |
16.21 |
| 2026-06-21 00:00 |
20:06:04.49 |
-36:51:18.1 |
HIP 98938 |
11.34 |
| 2026-06-21 12:00 |
20:05:49.33 |
-36:55:22.2 |
HIP 98938 |
6.65 |
| 2026-06-22 00:00 |
20:05:33.81 |
-36:59:26.2 |
HIP 98938 |
3.33 |