| Parameter |
Value |
| Designation |
P/2014 O3 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2014-04-17T13:13:10.761600Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:57Z |
| Obs used |
53 |
| NEO |
- |
| M1 |
14.100 |
| K1 |
4.500 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2014-07-17.0000000 |
| e |
0.38501995 |
| q (au) |
4.640620 |
| a (au) |
7.545968 |
| i (deg) |
7.806572 |
| Ω (om, deg) |
87.704076 |
| ω (w, deg) |
204.364367 |
| M (ma, deg) |
4.300672 |
Magnitude
Scatter + Global Linear
$$
M_a = (18.936 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
18.936 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.855 |
| k |
0.800 |
| 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 |
08:21:29.99 |
+24:13:46.8 |
HIP 40881 |
18.13 |
| 2026-06-01 12:00 |
08:21:39.72 |
+24:13:09.3 |
HIP 41076 |
18.07 |
| 2026-06-02 00:00 |
08:21:49.51 |
+24:12:31.5 |
HIP 41076 |
15.79 |
| 2026-06-02 12:00 |
08:21:59.37 |
+24:11:53.7 |
HIP 41076 |
13.52 |
| 2026-06-03 00:00 |
08:22:09.28 |
+24:11:15.6 |
HIP 41076 |
11.26 |
| 2026-06-03 12:00 |
08:22:19.27 |
+24:10:37.4 |
HIP 41076 |
9.03 |
| 2026-06-04 00:00 |
08:22:29.31 |
+24:09:59.0 |
HIP 41076 |
6.88 |
| 2026-06-04 12:00 |
08:22:39.41 |
+24:09:20.4 |
HIP 41076 |
4.93 |
| 2026-06-05 00:00 |
08:22:49.58 |
+24:08:41.7 |
HIP 41076 |
3.56 |
| 2026-06-05 12:00 |
08:22:59.80 |
+24:08:02.8 |
HIP 41076 |
3.57 |
| 2026-06-06 00:00 |
08:23:10.09 |
+24:07:23.7 |
HIP 41076 |
4.97 |
| 2026-06-06 12:00 |
08:23:20.44 |
+24:06:44.5 |
HIP 41076 |
6.97 |
| 2026-06-07 00:00 |
08:23:30.84 |
+24:06:05.1 |
HIP 41076 |
9.21 |
| 2026-06-07 12:00 |
08:23:41.30 |
+24:05:25.5 |
HIP 41076 |
11.55 |
| 2026-06-08 00:00 |
08:23:51.82 |
+24:04:45.8 |
HIP 41076 |
13.95 |
| 2026-06-08 12:00 |
08:24:02.40 |
+24:04:05.9 |
HIP 41244 |
14.14 |
| 2026-06-09 00:00 |
08:24:13.04 |
+24:03:25.9 |
HIP 41244 |
11.75 |
| 2026-06-09 12:00 |
08:24:23.73 |
+24:02:45.7 |
HIP 41244 |
9.40 |
| 2026-06-10 00:00 |
08:24:34.48 |
+24:02:05.4 |
HIP 41244 |
7.16 |
| 2026-06-10 12:00 |
08:24:45.28 |
+24:01:24.9 |
HIP 41244 |
5.22 |
| 2026-06-11 00:00 |
08:24:56.14 |
+24:00:44.2 |
HIP 41244 |
4.02 |
| 2026-06-11 12:00 |
08:25:07.06 |
+24:00:03.4 |
HIP 41244 |
4.29 |
| 2026-06-12 00:00 |
08:25:18.02 |
+23:59:22.5 |
HIP 41244 |
5.84 |
| 2026-06-12 12:00 |
08:25:29.05 |
+23:58:41.4 |
HIP 41244 |
7.97 |
| 2026-06-13 00:00 |
08:25:40.12 |
+23:58:00.2 |
HIP 41244 |
10.33 |
| 2026-06-13 12:00 |
08:25:51.25 |
+23:57:18.8 |
HIP 41244 |
12.81 |
| 2026-06-14 00:00 |
08:26:02.42 |
+23:56:37.2 |
HIP 41244 |
15.35 |
| 2026-06-14 12:00 |
08:26:13.65 |
+23:55:55.6 |
HIP 41244 |
17.93 |
| 2026-06-15 00:00 |
08:26:24.93 |
+23:55:13.8 |
HIP 41244 |
20.55 |
| 2026-06-15 12:00 |
08:26:36.26 |
+23:54:31.8 |
HIP 41244 |
23.19 |
| 2026-06-16 00:00 |
08:26:47.64 |
+23:53:49.7 |
HIP 41244 |
25.85 |
| 2026-06-16 12:00 |
08:26:59.07 |
+23:53:07.5 |
HIP 41574 |
27.22 |
| 2026-06-17 00:00 |
08:27:10.55 |
+23:52:25.1 |
HIP 41574 |
25.56 |
| 2026-06-17 12:00 |
08:27:22.08 |
+23:51:42.7 |
HIP 41574 |
24.08 |
| 2026-06-18 00:00 |
08:27:33.65 |
+23:51:00.0 |
HIP 41574 |
22.83 |
| 2026-06-18 12:00 |
08:27:45.27 |
+23:50:17.3 |
HIP 41574 |
21.86 |
| 2026-06-19 00:00 |
08:27:56.93 |
+23:49:34.4 |
HIP 41574 |
21.19 |
| 2026-06-19 12:00 |
08:28:08.64 |
+23:48:51.4 |
HIP 41574 |
20.86 |
| 2026-06-20 00:00 |
08:28:20.39 |
+23:48:08.3 |
HIP 41574 |
20.90 |
| 2026-06-20 12:00 |
08:28:32.19 |
+23:47:25.1 |
HIP 41574 |
21.31 |
| 2026-06-21 00:00 |
08:28:44.03 |
+23:46:41.7 |
HIP 41574 |
22.07 |
| 2026-06-21 12:00 |
08:28:55.92 |
+23:45:58.3 |
HIP 41574 |
23.15 |
| 2026-06-22 00:00 |
08:29:07.84 |
+23:45:14.7 |
HIP 41574 |
24.51 |