C/2010 D3 (WISE)
| Parameter |
Value |
| Designation |
C/2010 D3 (WISE) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2010-09-03T22:06:02.718720Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:40Z |
| Obs used |
87 |
| NEO |
- |
| M1 |
12.100 |
| K1 |
6.000 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2010-12-12.0000000 |
| e |
0.99962872 |
| q (au) |
4.247542 |
| a (au) |
11440.328800 |
| i (deg) |
76.394820 |
| Ω (om, deg) |
255.234609 |
| ω (w, deg) |
304.642621 |
| M (ma, deg) |
0.000080 |
Magnitude
Scatter + Global Linear
$$
M_a = (13.647 + 2.928\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
13.647 |
| n |
2.928 |
| 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 |
19:17:35.89 |
+51:33:05.1 |
HIP 94814 |
12.30 |
| 2026-02-03 12:00 |
19:17:41.66 |
+51:33:35.6 |
HIP 94814 |
12.87 |
| 2026-02-04 00:00 |
19:17:47.41 |
+51:34:06.5 |
HIP 94814 |
13.50 |
| 2026-02-04 12:00 |
19:17:53.14 |
+51:34:37.8 |
HIP 94814 |
14.19 |
| 2026-02-05 00:00 |
19:17:58.84 |
+51:35:09.5 |
HIP 94814 |
14.92 |
| 2026-02-05 12:00 |
19:18:04.52 |
+51:35:41.6 |
HIP 94814 |
15.68 |
| 2026-02-06 00:00 |
19:18:10.18 |
+51:36:14.1 |
HIP 94814 |
16.49 |
| 2026-02-06 12:00 |
19:18:15.81 |
+51:36:47.0 |
HIP 94814 |
17.32 |
| 2026-02-07 00:00 |
19:18:21.42 |
+51:37:20.2 |
HIP 94814 |
18.17 |
| 2026-02-07 12:00 |
19:18:27.01 |
+51:37:53.9 |
HIP 94814 |
19.05 |
| 2026-02-08 00:00 |
19:18:32.57 |
+51:38:27.9 |
HIP 94814 |
19.95 |
| 2026-02-08 12:00 |
19:18:38.11 |
+51:39:02.3 |
HIP 94814 |
20.86 |
| 2026-02-09 00:00 |
19:18:43.62 |
+51:39:37.1 |
HIP 94814 |
21.79 |
| 2026-02-09 12:00 |
19:18:49.10 |
+51:40:12.3 |
HIP 94814 |
22.73 |
| 2026-02-10 00:00 |
19:18:54.56 |
+51:40:47.9 |
HIP 94814 |
23.68 |
| 2026-02-10 12:00 |
19:18:59.99 |
+51:41:23.8 |
HIP 94814 |
24.64 |
| 2026-02-11 00:00 |
19:19:05.39 |
+51:42:00.1 |
HIP 94814 |
25.61 |
| 2026-02-11 12:00 |
19:19:10.77 |
+51:42:36.8 |
HIP 94814 |
26.58 |
| 2026-02-12 00:00 |
19:19:16.12 |
+51:43:13.8 |
HIP 94814 |
27.56 |
| 2026-02-12 12:00 |
19:19:21.44 |
+51:43:51.2 |
HIP 94814 |
28.55 |
| 2026-02-13 00:00 |
19:19:26.73 |
+51:44:29.0 |
HIP 94814 |
29.55 |
| 2026-02-13 12:00 |
19:19:32.00 |
+51:45:07.2 |
HIP 94814 |
30.55 |
| 2026-02-14 00:00 |
19:19:37.23 |
+51:45:45.7 |
HIP 94896 |
30.35 |
| 2026-02-14 12:00 |
19:19:42.44 |
+51:46:24.5 |
HIP 94896 |
29.97 |
| 2026-02-15 00:00 |
19:19:47.61 |
+51:47:03.7 |
HIP 94896 |
29.62 |
| 2026-02-15 12:00 |
19:19:52.75 |
+51:47:43.3 |
HIP 94896 |
29.29 |
| 2026-02-16 00:00 |
19:19:57.87 |
+51:48:23.2 |
HIP 95218 |
28.71 |
| 2026-02-16 12:00 |
19:20:02.95 |
+51:49:03.4 |
HIP 95218 |
27.67 |
| 2026-02-17 00:00 |
19:20:08.00 |
+51:49:44.0 |
HIP 95218 |
26.64 |
| 2026-02-17 12:00 |
19:20:13.02 |
+51:50:25.0 |
HIP 95218 |
25.61 |
| 2026-02-18 00:00 |
19:20:18.01 |
+51:51:06.3 |
HIP 95218 |
24.58 |
| 2026-02-18 12:00 |
19:20:22.96 |
+51:51:47.9 |
HIP 95218 |
23.54 |
| 2026-02-19 00:00 |
19:20:27.88 |
+51:52:29.8 |
HIP 95218 |
22.51 |
| 2026-02-19 12:00 |
19:20:32.77 |
+51:53:12.1 |
HIP 95218 |
21.48 |
| 2026-02-20 00:00 |
19:20:37.63 |
+51:53:54.7 |
HIP 95218 |
20.45 |
| 2026-02-20 12:00 |
19:20:42.45 |
+51:54:37.7 |
HIP 95218 |
19.42 |
| 2026-02-21 00:00 |
19:20:47.23 |
+51:55:20.9 |
HIP 95218 |
18.39 |
| 2026-02-21 12:00 |
19:20:51.99 |
+51:56:04.5 |
HIP 95218 |
17.36 |
| 2026-02-22 00:00 |
19:20:56.70 |
+51:56:48.4 |
HIP 95218 |
16.34 |
| 2026-02-22 12:00 |
19:21:01.38 |
+51:57:32.6 |
HIP 95218 |
15.31 |
| 2026-02-23 00:00 |
19:21:06.03 |
+51:58:17.1 |
HIP 95218 |
14.29 |
| 2026-02-23 12:00 |
19:21:10.64 |
+51:59:01.9 |
HIP 95218 |
13.27 |
| 2026-02-24 00:00 |
19:21:15.22 |
+51:59:47.0 |
HIP 95218 |
12.26 |