C/2010 G3 (WISE)
| Parameter |
Value |
| Designation |
C/2010 G3 (WISE) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2010-04-11T02:03:46.451520Z |
| Orbit solution date (soln_date, UTC) |
2022-07-06T03:12:22Z |
| Obs used |
271 |
| NEO |
- |
| M1 |
5.100 |
| K1 |
14.500 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2010-07-15.0000000 |
| e |
0.99809183 |
| q (au) |
4.907655 |
| a (au) |
2571.923503 |
| i (deg) |
108.267609 |
| Ω (om, deg) |
313.718341 |
| ω (w, deg) |
75.199953 |
| M (ma, deg) |
0.000717 |
Magnitude
Scatter + Global Linear
$$
M_a = (7.154 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
7.154 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.708 |
| 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) |
| 2026-02-03 00:00 |
07:58:29.27 |
-07:52:50.0 |
HIP 38878 |
17.89 |
| 2026-02-03 12:00 |
07:58:25.29 |
-07:52:37.0 |
HIP 38878 |
16.88 |
| 2026-02-04 00:00 |
07:58:21.33 |
-07:52:23.9 |
HIP 38878 |
15.88 |
| 2026-02-04 12:00 |
07:58:17.37 |
-07:52:10.5 |
HIP 38878 |
14.88 |
| 2026-02-05 00:00 |
07:58:13.43 |
-07:51:56.9 |
HIP 38878 |
13.87 |
| 2026-02-05 12:00 |
07:58:09.50 |
-07:51:43.1 |
HIP 38878 |
12.88 |
| 2026-02-06 00:00 |
07:58:05.57 |
-07:51:29.1 |
HIP 38878 |
11.88 |
| 2026-02-06 12:00 |
07:58:01.67 |
-07:51:14.9 |
HIP 38878 |
10.88 |
| 2026-02-07 00:00 |
07:57:57.77 |
-07:51:00.5 |
HIP 38878 |
9.89 |
| 2026-02-07 12:00 |
07:57:53.89 |
-07:50:45.9 |
HIP 38878 |
8.90 |
| 2026-02-08 00:00 |
07:57:50.02 |
-07:50:31.2 |
HIP 38878 |
7.91 |
| 2026-02-08 12:00 |
07:57:46.16 |
-07:50:16.2 |
HIP 38878 |
6.93 |
| 2026-02-09 00:00 |
07:57:42.32 |
-07:50:01.0 |
HIP 38878 |
5.95 |
| 2026-02-09 12:00 |
07:57:38.49 |
-07:49:45.6 |
HIP 38878 |
4.97 |
| 2026-02-10 00:00 |
07:57:34.67 |
-07:49:30.0 |
HIP 38878 |
4.00 |
| 2026-02-10 12:00 |
07:57:30.87 |
-07:49:14.3 |
HIP 38878 |
3.03 |
| 2026-02-11 00:00 |
07:57:27.09 |
-07:48:58.3 |
HIP 38878 |
2.07 |
| 2026-02-11 12:00 |
07:57:23.32 |
-07:48:42.2 |
HIP 38878 |
1.14 |
| 2026-02-12 00:00 |
07:57:19.56 |
-07:48:25.9 |
HIP 38878 |
0.44 |
| 2026-02-12 12:00 |
07:57:15.82 |
-07:48:09.4 |
HIP 38878 |
0.98 |
| 2026-02-13 00:00 |
07:57:12.10 |
-07:47:52.7 |
HIP 38878 |
1.89 |
| 2026-02-13 12:00 |
07:57:08.39 |
-07:47:35.9 |
HIP 38878 |
2.84 |
| 2026-02-14 00:00 |
07:57:04.70 |
-07:47:18.8 |
HIP 38878 |
3.78 |
| 2026-02-14 12:00 |
07:57:01.03 |
-07:47:01.6 |
HIP 38878 |
4.73 |
| 2026-02-15 00:00 |
07:56:57.38 |
-07:46:44.2 |
HIP 38878 |
5.68 |
| 2026-02-15 12:00 |
07:56:53.74 |
-07:46:26.7 |
HIP 38878 |
6.62 |
| 2026-02-16 00:00 |
07:56:50.12 |
-07:46:09.0 |
HIP 38878 |
7.56 |
| 2026-02-16 12:00 |
07:56:46.52 |
-07:45:51.1 |
HIP 38878 |
8.50 |
| 2026-02-17 00:00 |
07:56:42.94 |
-07:45:33.0 |
HIP 38878 |
9.44 |
| 2026-02-17 12:00 |
07:56:39.37 |
-07:45:14.8 |
HIP 38878 |
10.37 |
| 2026-02-18 00:00 |
07:56:35.83 |
-07:44:56.5 |
HIP 38878 |
11.30 |
| 2026-02-18 12:00 |
07:56:32.30 |
-07:44:37.9 |
HIP 38878 |
12.22 |
| 2026-02-19 00:00 |
07:56:28.79 |
-07:44:19.2 |
HIP 38878 |
13.14 |
| 2026-02-19 12:00 |
07:56:25.31 |
-07:44:00.4 |
HIP 38878 |
14.06 |
| 2026-02-20 00:00 |
07:56:21.84 |
-07:43:41.4 |
HIP 38878 |
14.97 |
| 2026-02-20 12:00 |
07:56:18.40 |
-07:43:22.3 |
HIP 38878 |
15.88 |
| 2026-02-21 00:00 |
07:56:14.97 |
-07:43:03.0 |
HIP 38790 |
16.51 |
| 2026-02-21 12:00 |
07:56:11.57 |
-07:42:43.5 |
HIP 38790 |
16.93 |
| 2026-02-22 00:00 |
07:56:08.18 |
-07:42:24.0 |
HIP 38790 |
17.40 |
| 2026-02-22 12:00 |
07:56:04.82 |
-07:42:04.2 |
HIP 38790 |
17.90 |
| 2026-02-23 00:00 |
07:56:01.48 |
-07:41:44.4 |
HIP 38790 |
18.43 |
| 2026-02-23 12:00 |
07:55:58.16 |
-07:41:24.4 |
HIP 38790 |
18.98 |
| 2026-02-24 00:00 |
07:55:54.87 |
-07:41:04.3 |
HIP 38790 |
19.57 |