| 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) |
| 2026-06-01 00:00 |
07:54:24.15 |
-06:38:13.0 |
HIP 38743 |
23.32 |
| 2026-06-01 12:00 |
07:54:26.43 |
-06:38:05.8 |
HIP 38743 |
22.74 |
| 2026-06-02 00:00 |
07:54:28.72 |
-06:37:58.8 |
HIP 38743 |
22.16 |
| 2026-06-02 12:00 |
07:54:31.04 |
-06:37:51.9 |
HIP 38743 |
21.58 |
| 2026-06-03 00:00 |
07:54:33.37 |
-06:37:45.3 |
HIP 38743 |
20.99 |
| 2026-06-03 12:00 |
07:54:35.73 |
-06:37:38.9 |
HIP 38743 |
20.40 |
| 2026-06-04 00:00 |
07:54:38.10 |
-06:37:32.7 |
HIP 38743 |
19.81 |
| 2026-06-04 12:00 |
07:54:40.50 |
-06:37:26.7 |
HIP 38743 |
19.21 |
| 2026-06-05 00:00 |
07:54:42.91 |
-06:37:21.0 |
HIP 38743 |
18.61 |
| 2026-06-05 12:00 |
07:54:45.35 |
-06:37:15.4 |
HIP 38743 |
18.01 |
| 2026-06-06 00:00 |
07:54:47.80 |
-06:37:10.0 |
HIP 38743 |
17.40 |
| 2026-06-06 12:00 |
07:54:50.27 |
-06:37:04.9 |
HIP 38743 |
16.79 |
| 2026-06-07 00:00 |
07:54:52.77 |
-06:37:00.0 |
HIP 38743 |
16.18 |
| 2026-06-07 12:00 |
07:54:55.28 |
-06:36:55.2 |
HIP 38743 |
15.57 |
| 2026-06-08 00:00 |
07:54:57.80 |
-06:36:50.7 |
HIP 38743 |
14.95 |
| 2026-06-08 12:00 |
07:55:00.35 |
-06:36:46.4 |
HIP 38743 |
14.33 |
| 2026-06-09 00:00 |
07:55:02.92 |
-06:36:42.3 |
HIP 38743 |
13.72 |
| 2026-06-09 12:00 |
07:55:05.50 |
-06:36:38.4 |
HIP 38743 |
13.10 |
| 2026-06-10 00:00 |
07:55:08.10 |
-06:36:34.8 |
HIP 38743 |
12.48 |
| 2026-06-10 12:00 |
07:55:10.72 |
-06:36:31.3 |
HIP 38743 |
11.86 |
| 2026-06-11 00:00 |
07:55:13.35 |
-06:36:28.1 |
HIP 38743 |
11.25 |
| 2026-06-11 12:00 |
07:55:16.01 |
-06:36:25.1 |
HIP 38743 |
10.63 |
| 2026-06-12 00:00 |
07:55:18.68 |
-06:36:22.3 |
HIP 38743 |
10.03 |
| 2026-06-12 12:00 |
07:55:21.36 |
-06:36:19.7 |
HIP 38743 |
9.42 |
| 2026-06-13 00:00 |
07:55:24.07 |
-06:36:17.4 |
HIP 38743 |
8.83 |
| 2026-06-13 12:00 |
07:55:26.79 |
-06:36:15.2 |
HIP 38743 |
8.24 |
| 2026-06-14 00:00 |
07:55:29.52 |
-06:36:13.3 |
HIP 38743 |
7.67 |
| 2026-06-14 12:00 |
07:55:32.27 |
-06:36:11.6 |
HIP 38743 |
7.12 |
| 2026-06-15 00:00 |
07:55:35.04 |
-06:36:10.1 |
HIP 38743 |
6.59 |
| 2026-06-15 12:00 |
07:55:37.82 |
-06:36:08.9 |
HIP 38743 |
6.10 |
| 2026-06-16 00:00 |
07:55:40.62 |
-06:36:07.8 |
HIP 38743 |
5.64 |
| 2026-06-16 12:00 |
07:55:43.43 |
-06:36:07.0 |
HIP 38743 |
5.24 |
| 2026-06-17 00:00 |
07:55:46.26 |
-06:36:06.4 |
HIP 38743 |
4.91 |
| 2026-06-17 12:00 |
07:55:49.10 |
-06:36:06.0 |
HIP 38743 |
4.67 |
| 2026-06-18 00:00 |
07:55:51.96 |
-06:36:05.9 |
HIP 38743 |
4.53 |
| 2026-06-18 12:00 |
07:55:54.83 |
-06:36:05.9 |
HIP 38743 |
4.50 |
| 2026-06-19 00:00 |
07:55:57.72 |
-06:36:06.2 |
HIP 38743 |
4.59 |
| 2026-06-19 12:00 |
07:56:00.61 |
-06:36:06.7 |
HIP 38743 |
4.78 |
| 2026-06-20 00:00 |
07:56:03.52 |
-06:36:07.4 |
HIP 38743 |
5.08 |
| 2026-06-20 12:00 |
07:56:06.45 |
-06:36:08.4 |
HIP 38743 |
5.46 |
| 2026-06-21 00:00 |
07:56:09.39 |
-06:36:09.5 |
HIP 38743 |
5.92 |
| 2026-06-21 12:00 |
07:56:12.34 |
-06:36:10.9 |
HIP 38743 |
6.43 |
| 2026-06-22 00:00 |
07:56:15.30 |
-06:36:12.5 |
HIP 38743 |
6.98 |