| Parameter |
Value |
| Designation |
C/2014 OG392 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2021-12-01T11:14:16.670400Z |
| Orbit solution date (soln_date, UTC) |
2025-12-18T15:12:21Z |
| Obs used |
369 |
| NEO |
- |
| M1 |
11.500 |
| K1 |
4.500 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2019-08-18.0000000 |
| e |
0.18203659 |
| q (au) |
9.968960 |
| a (au) |
12.187538 |
| i (deg) |
9.036164 |
| Ω (om, deg) |
145.825140 |
| ω (w, deg) |
254.110404 |
| M (ma, deg) |
340.623312 |
Magnitude
Scatter + Global Linear
$$
M_a = (H_0 + n\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
- |
| n |
- |
| gf |
- |
| gb |
- |
| k |
- |
| δ90 |
- |
| 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
Finding Chart
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
06:07:41.61 |
+16:52:05.9 |
HIP 29001 |
20.27 |
| 2026-06-01 12:00 |
06:07:54.85 |
+16:52:14.3 |
HIP 29001 |
21.80 |
| 2026-06-02 00:00 |
06:08:08.11 |
+16:52:22.6 |
HIP 29187 |
22.37 |
| 2026-06-02 12:00 |
06:08:21.40 |
+16:52:30.6 |
HIP 29187 |
19.88 |
| 2026-06-03 00:00 |
06:08:34.71 |
+16:52:38.4 |
HIP 29187 |
17.60 |
| 2026-06-03 12:00 |
06:08:48.04 |
+16:52:46.0 |
HIP 29187 |
15.64 |
| 2026-06-04 00:00 |
06:09:01.40 |
+16:52:53.4 |
HIP 29187 |
14.13 |
| 2026-06-04 12:00 |
06:09:14.78 |
+16:53:00.7 |
HIP 29187 |
13.23 |
| 2026-06-05 00:00 |
06:09:28.18 |
+16:53:07.7 |
HIP 29187 |
13.07 |
| 2026-06-05 12:00 |
06:09:41.60 |
+16:53:14.5 |
HIP 29187 |
13.68 |
| 2026-06-06 00:00 |
06:09:55.04 |
+16:53:21.1 |
HIP 29187 |
14.97 |
| 2026-06-06 12:00 |
06:10:08.51 |
+16:53:27.5 |
HIP 29187 |
16.79 |
| 2026-06-07 00:00 |
06:10:21.99 |
+16:53:33.7 |
HIP 29187 |
18.99 |
| 2026-06-07 12:00 |
06:10:35.49 |
+16:53:39.7 |
HIP 29187 |
21.45 |
| 2026-06-08 00:00 |
06:10:49.01 |
+16:53:45.5 |
HIP 29187 |
24.10 |
| 2026-06-08 12:00 |
06:11:02.55 |
+16:53:51.1 |
HIP 29187 |
26.87 |
| 2026-06-09 00:00 |
06:11:16.11 |
+16:53:56.5 |
HIP 29187 |
29.75 |
| 2026-06-09 12:00 |
06:11:29.69 |
+16:54:01.7 |
HIP 29187 |
32.69 |
| 2026-06-10 00:00 |
06:11:43.28 |
+16:54:06.7 |
HIP 29187 |
35.70 |
| 2026-06-10 12:00 |
06:11:56.89 |
+16:54:11.4 |
HIP 29591 |
34.14 |
| 2026-06-11 00:00 |
06:12:10.51 |
+16:54:16.0 |
HIP 29591 |
31.08 |
| 2026-06-11 12:00 |
06:12:24.15 |
+16:54:20.4 |
HIP 29591 |
28.06 |
| 2026-06-12 00:00 |
06:12:37.81 |
+16:54:24.5 |
HIP 29591 |
25.10 |
| 2026-06-12 12:00 |
06:12:51.48 |
+16:54:28.5 |
HIP 29591 |
22.22 |
| 2026-06-13 00:00 |
06:13:05.16 |
+16:54:32.2 |
HIP 29591 |
19.46 |
| 2026-06-13 12:00 |
06:13:18.86 |
+16:54:35.8 |
HIP 29591 |
16.89 |
| 2026-06-14 00:00 |
06:13:32.57 |
+16:54:39.1 |
HIP 29591 |
14.60 |
| 2026-06-14 12:00 |
06:13:46.29 |
+16:54:42.2 |
HIP 29591 |
12.76 |
| 2026-06-15 00:00 |
06:14:00.02 |
+16:54:45.1 |
HIP 29591 |
11.57 |
| 2026-06-15 12:00 |
06:14:13.76 |
+16:54:47.9 |
HIP 29591 |
11.25 |
| 2026-06-16 00:00 |
06:14:27.52 |
+16:54:50.4 |
HIP 29591 |
11.88 |
| 2026-06-16 12:00 |
06:14:41.28 |
+16:54:52.7 |
HIP 29665 |
10.85 |
| 2026-06-17 00:00 |
06:14:55.05 |
+16:54:54.8 |
HIP 29665 |
10.17 |
| 2026-06-17 12:00 |
06:15:08.83 |
+16:54:56.6 |
HIP 29665 |
10.53 |
| 2026-06-18 00:00 |
06:15:22.62 |
+16:54:58.3 |
HIP 29665 |
11.83 |
| 2026-06-18 12:00 |
06:15:36.41 |
+16:54:59.8 |
HIP 29665 |
13.82 |
| 2026-06-19 00:00 |
06:15:50.22 |
+16:55:01.1 |
HIP 29665 |
16.23 |
| 2026-06-19 12:00 |
06:16:04.02 |
+16:55:02.2 |
HIP 29798 |
16.55 |
| 2026-06-20 00:00 |
06:16:17.84 |
+16:55:03.0 |
HIP 29798 |
15.91 |
| 2026-06-20 12:00 |
06:16:31.66 |
+16:55:03.7 |
HIP 29798 |
15.95 |
| 2026-06-21 00:00 |
06:16:45.48 |
+16:55:04.1 |
HIP 29798 |
16.66 |
| 2026-06-21 12:00 |
06:16:59.31 |
+16:55:04.4 |
HIP 29798 |
17.96 |
| 2026-06-22 00:00 |
06:17:13.14 |
+16:55:04.5 |
HIP 29798 |
19.74 |