506P/WISE-LINEAR
| Parameter |
Value |
| Designation |
506P/WISE-LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2023-08-25T06:38:14.740800Z |
| Orbit solution date (soln_date, UTC) |
2025-09-15T15:02:52Z |
| Obs used |
291 |
| NEO |
- |
| M1 |
8.600 |
| K1 |
19.250 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2010-05-20T12:52:33.600000Z |
| Discovery magnitude (MPC) |
- |
| Discovery observatory (MPC) |
C51 · WISE |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2019-09-03.0000000 |
| e |
0.48210120 |
| q (au) |
2.888384 |
| a (au) |
5.577120 |
| i (deg) |
13.650119 |
| Ω (om, deg) |
325.837750 |
| ω (w, deg) |
353.601887 |
| M (ma, deg) |
251.322812 |
Magnitude
Scatter + Global Linear
$$
M_a = (9.543 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
9.543 |
| n |
6.000 |
| gf |
0.999 |
| gb |
-0.500 |
| k |
1.000 |
| 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 |
04:45:54.48 |
+35:54:59.6 |
HIP 22035 |
25.83 |
| 2026-02-03 12:00 |
04:45:51.40 |
+35:53:35.0 |
HIP 22035 |
26.25 |
| 2026-02-04 00:00 |
04:45:48.55 |
+35:52:10.7 |
HIP 22035 |
26.78 |
| 2026-02-04 12:00 |
04:45:45.92 |
+35:50:46.6 |
HIP 22035 |
27.41 |
| 2026-02-05 00:00 |
04:45:43.51 |
+35:49:22.9 |
HIP 22035 |
28.14 |
| 2026-02-05 12:00 |
04:45:41.33 |
+35:47:59.3 |
HIP 22035 |
28.95 |
| 2026-02-06 00:00 |
04:45:39.37 |
+35:46:36.1 |
HIP 22035 |
29.82 |
| 2026-02-06 12:00 |
04:45:37.64 |
+35:45:13.2 |
HIP 22035 |
30.77 |
| 2026-02-07 00:00 |
04:45:36.13 |
+35:43:50.6 |
HIP 22035 |
31.76 |
| 2026-02-07 12:00 |
04:45:34.84 |
+35:42:28.2 |
HIP 22035 |
32.81 |
| 2026-02-08 00:00 |
04:45:33.77 |
+35:41:06.2 |
HIP 22092 |
31.91 |
| 2026-02-08 12:00 |
04:45:32.92 |
+35:39:44.6 |
HIP 22092 |
30.54 |
| 2026-02-09 00:00 |
04:45:32.29 |
+35:38:23.2 |
HIP 22092 |
29.18 |
| 2026-02-09 12:00 |
04:45:31.89 |
+35:37:02.2 |
HIP 22092 |
27.83 |
| 2026-02-10 00:00 |
04:45:31.70 |
+35:35:41.6 |
HIP 22092 |
26.50 |
| 2026-02-10 12:00 |
04:45:31.74 |
+35:34:21.2 |
HIP 22092 |
25.17 |
| 2026-02-11 00:00 |
04:45:31.99 |
+35:33:01.3 |
HIP 22092 |
23.87 |
| 2026-02-11 12:00 |
04:45:32.47 |
+35:31:41.7 |
HIP 22092 |
22.58 |
| 2026-02-12 00:00 |
04:45:33.16 |
+35:30:22.5 |
HIP 22092 |
21.31 |
| 2026-02-12 12:00 |
04:45:34.07 |
+35:29:03.6 |
HIP 22092 |
20.06 |
| 2026-02-13 00:00 |
04:45:35.20 |
+35:27:45.2 |
HIP 22092 |
18.85 |
| 2026-02-13 12:00 |
04:45:36.54 |
+35:26:27.1 |
HIP 22092 |
17.66 |
| 2026-02-14 00:00 |
04:45:38.11 |
+35:25:09.4 |
HIP 22092 |
16.52 |
| 2026-02-14 12:00 |
04:45:39.88 |
+35:23:52.1 |
HIP 22092 |
15.44 |
| 2026-02-15 00:00 |
04:45:41.88 |
+35:22:35.2 |
HIP 22092 |
14.42 |
| 2026-02-15 12:00 |
04:45:44.09 |
+35:21:18.7 |
HIP 22092 |
13.48 |
| 2026-02-16 00:00 |
04:45:46.51 |
+35:20:02.6 |
HIP 22092 |
12.65 |
| 2026-02-16 12:00 |
04:45:49.14 |
+35:18:47.0 |
HIP 22092 |
11.95 |
| 2026-02-17 00:00 |
04:45:51.99 |
+35:17:31.7 |
HIP 22092 |
11.41 |
| 2026-02-17 12:00 |
04:45:55.05 |
+35:16:16.9 |
HIP 22092 |
11.06 |
| 2026-02-18 00:00 |
04:45:58.33 |
+35:15:02.5 |
HIP 22092 |
10.91 |
| 2026-02-18 12:00 |
04:46:01.81 |
+35:13:48.6 |
HIP 22092 |
10.99 |
| 2026-02-19 00:00 |
04:46:05.50 |
+35:12:35.0 |
HIP 22092 |
11.30 |
| 2026-02-19 12:00 |
04:46:09.40 |
+35:11:22.0 |
HIP 22092 |
11.81 |
| 2026-02-20 00:00 |
04:46:13.51 |
+35:10:09.3 |
HIP 22092 |
12.52 |
| 2026-02-20 12:00 |
04:46:17.83 |
+35:08:57.1 |
HIP 22092 |
13.40 |
| 2026-02-21 00:00 |
04:46:22.35 |
+35:07:45.4 |
HIP 22092 |
14.42 |
| 2026-02-21 12:00 |
04:46:27.08 |
+35:06:34.1 |
HIP 22092 |
15.56 |
| 2026-02-22 00:00 |
04:46:32.01 |
+35:05:23.3 |
HIP 22092 |
16.80 |
| 2026-02-22 12:00 |
04:46:37.15 |
+35:04:12.9 |
HIP 22092 |
18.13 |
| 2026-02-23 00:00 |
04:46:42.49 |
+35:03:03.0 |
HIP 22092 |
19.53 |
| 2026-02-23 12:00 |
04:46:48.03 |
+35:01:53.5 |
HIP 22092 |
21.00 |
| 2026-02-24 00:00 |
04:46:53.77 |
+35:00:44.5 |
HIP 22092 |
22.52 |