| 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) |
| 2026-03-26 00:00 |
19:24:33.92 |
+52:52:10.9 |
HIP 95234 |
21.06 |
| 2026-03-26 12:00 |
19:24:35.81 |
+52:53:08.4 |
HIP 95234 |
20.84 |
| 2026-03-27 00:00 |
19:24:37.66 |
+52:54:06.1 |
HIP 95234 |
20.66 |
| 2026-03-27 12:00 |
19:24:39.46 |
+52:55:03.8 |
HIP 95234 |
20.52 |
| 2026-03-28 00:00 |
19:24:41.20 |
+52:56:01.6 |
HIP 95234 |
20.42 |
| 2026-03-28 12:00 |
19:24:42.90 |
+52:56:59.5 |
HIP 95234 |
20.36 |
| 2026-03-29 00:00 |
19:24:44.54 |
+52:57:57.5 |
HIP 95234 |
20.34 |
| 2026-03-29 12:00 |
19:24:46.14 |
+52:58:55.5 |
HIP 95234 |
20.36 |
| 2026-03-30 00:00 |
19:24:47.68 |
+52:59:53.6 |
HIP 95234 |
20.43 |
| 2026-03-30 12:00 |
19:24:49.17 |
+53:00:51.8 |
HIP 95234 |
20.53 |
| 2026-03-31 00:00 |
19:24:50.62 |
+53:01:50.0 |
HIP 95234 |
20.67 |
| 2026-03-31 12:00 |
19:24:52.01 |
+53:02:48.3 |
HIP 95234 |
20.85 |
| 2026-04-01 00:00 |
19:24:53.34 |
+53:03:46.7 |
HIP 95234 |
21.07 |
| 2026-04-01 12:00 |
19:24:54.63 |
+53:04:45.1 |
HIP 95234 |
21.33 |
| 2026-04-02 00:00 |
19:24:55.87 |
+53:05:43.5 |
HIP 95234 |
21.62 |
| 2026-04-02 12:00 |
19:24:57.05 |
+53:06:42.0 |
HIP 95234 |
21.94 |
| 2026-04-03 00:00 |
19:24:58.19 |
+53:07:40.5 |
HIP 95234 |
22.30 |
| 2026-04-03 12:00 |
19:24:59.27 |
+53:08:39.1 |
HIP 95234 |
22.68 |
| 2026-04-04 00:00 |
19:25:00.30 |
+53:09:37.7 |
HIP 95234 |
23.10 |
| 2026-04-04 12:00 |
19:25:01.27 |
+53:10:36.4 |
HIP 95234 |
23.54 |
| 2026-04-05 00:00 |
19:25:02.20 |
+53:11:35.0 |
HIP 95234 |
24.01 |
| 2026-04-05 12:00 |
19:25:03.07 |
+53:12:33.7 |
HIP 95234 |
24.50 |
| 2026-04-06 00:00 |
19:25:03.89 |
+53:13:32.4 |
HIP 95234 |
25.01 |
| 2026-04-06 12:00 |
19:25:04.66 |
+53:14:31.1 |
HIP 95234 |
25.54 |
| 2026-04-07 00:00 |
19:25:05.37 |
+53:15:29.8 |
HIP 95234 |
26.10 |
| 2026-04-07 12:00 |
19:25:06.04 |
+53:16:28.6 |
HIP 95234 |
26.67 |
| 2026-04-08 00:00 |
19:25:06.65 |
+53:17:27.3 |
HIP 95234 |
27.25 |
| 2026-04-08 12:00 |
19:25:07.21 |
+53:18:26.0 |
HIP 95473 |
27.71 |
| 2026-04-09 00:00 |
19:25:07.71 |
+53:19:24.8 |
HIP 95473 |
26.73 |
| 2026-04-09 12:00 |
19:25:08.16 |
+53:20:23.5 |
HIP 95473 |
25.75 |
| 2026-04-10 00:00 |
19:25:08.56 |
+53:21:22.2 |
HIP 95473 |
24.77 |
| 2026-04-10 12:00 |
19:25:08.91 |
+53:22:20.9 |
HIP 95473 |
23.79 |
| 2026-04-11 00:00 |
19:25:09.20 |
+53:23:19.6 |
HIP 95473 |
22.81 |
| 2026-04-11 12:00 |
19:25:09.44 |
+53:24:18.2 |
HIP 95473 |
21.83 |
| 2026-04-12 00:00 |
19:25:09.63 |
+53:25:16.9 |
HIP 95473 |
20.85 |
| 2026-04-12 12:00 |
19:25:09.76 |
+53:26:15.5 |
HIP 95473 |
19.88 |
| 2026-04-13 00:00 |
19:25:09.84 |
+53:27:14.0 |
HIP 95473 |
18.90 |
| 2026-04-13 12:00 |
19:25:09.87 |
+53:28:12.5 |
HIP 95473 |
17.93 |
| 2026-04-14 00:00 |
19:25:09.84 |
+53:29:11.0 |
HIP 95473 |
16.95 |
| 2026-04-14 12:00 |
19:25:09.76 |
+53:30:09.4 |
HIP 95473 |
15.98 |
| 2026-04-15 00:00 |
19:25:09.63 |
+53:31:07.8 |
HIP 95473 |
15.01 |
| 2026-04-15 12:00 |
19:25:09.44 |
+53:32:06.1 |
HIP 95473 |
14.04 |
| 2026-04-16 00:00 |
19:25:09.20 |
+53:33:04.4 |
HIP 95473 |
13.07 |