| 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) |
| 2026-05-12 00:00 |
05:30:34.82 |
+33:23:09.3 |
HIP 25847 |
7.18 |
| 2026-05-12 12:00 |
05:30:59.09 |
+33:22:51.5 |
HIP 25847 |
3.73 |
| 2026-05-13 00:00 |
05:31:23.40 |
+33:22:33.9 |
HIP 25847 |
5.29 |
| 2026-05-13 12:00 |
05:31:47.76 |
+33:22:16.3 |
HIP 25847 |
9.69 |
| 2026-05-14 00:00 |
05:32:12.17 |
+33:21:58.9 |
HIP 25847 |
14.56 |
| 2026-05-14 12:00 |
05:32:36.62 |
+33:21:41.6 |
HIP 26099 |
17.26 |
| 2026-05-15 00:00 |
05:33:01.12 |
+33:21:24.3 |
HIP 26099 |
12.34 |
| 2026-05-15 12:00 |
05:33:25.66 |
+33:21:07.2 |
HIP 26099 |
7.69 |
| 2026-05-16 00:00 |
05:33:50.24 |
+33:20:50.2 |
HIP 26099 |
4.29 |
| 2026-05-16 12:00 |
05:34:14.86 |
+33:20:33.3 |
HIP 26099 |
5.53 |
| 2026-05-17 00:00 |
05:34:39.53 |
+33:20:16.4 |
HIP 26099 |
9.79 |
| 2026-05-17 12:00 |
05:35:04.23 |
+33:19:59.7 |
HIP 26228 |
6.23 |
| 2026-05-18 00:00 |
05:35:28.97 |
+33:19:43.0 |
HIP 26228 |
5.73 |
| 2026-05-18 12:00 |
05:35:53.76 |
+33:19:26.5 |
HIP 26228 |
8.98 |
| 2026-05-19 00:00 |
05:36:18.58 |
+33:19:10.0 |
HIP 26228 |
13.50 |
| 2026-05-19 12:00 |
05:36:43.43 |
+33:18:53.6 |
HIP 26228 |
18.40 |
| 2026-05-20 00:00 |
05:37:08.32 |
+33:18:37.3 |
HIP 26463 |
16.85 |
| 2026-05-20 12:00 |
05:37:33.25 |
+33:18:21.1 |
HIP 26527 |
12.29 |
| 2026-05-21 00:00 |
05:37:58.21 |
+33:18:04.9 |
HIP 26527 |
7.08 |
| 2026-05-21 12:00 |
05:38:23.20 |
+33:17:48.8 |
HIP 26527 |
1.91 |
| 2026-05-22 00:00 |
05:38:48.22 |
+33:17:32.8 |
HIP 26527 |
3.45 |
| 2026-05-22 12:00 |
05:39:13.28 |
+33:17:16.9 |
HIP 26527 |
8.66 |
| 2026-05-23 00:00 |
05:39:38.36 |
+33:17:01.1 |
HIP 26527 |
13.91 |
| 2026-05-23 12:00 |
05:40:03.48 |
+33:16:45.3 |
HIP 26527 |
19.16 |
| 2026-05-24 00:00 |
05:40:28.62 |
+33:16:29.6 |
HIP 26744 |
23.54 |
| 2026-05-24 12:00 |
05:40:53.80 |
+33:16:13.9 |
HIP 26744 |
22.49 |
| 2026-05-25 00:00 |
05:41:19.00 |
+33:15:58.3 |
HIP 26915 |
19.96 |
| 2026-05-25 12:00 |
05:41:44.22 |
+33:15:42.8 |
HIP 26915 |
15.19 |
| 2026-05-26 00:00 |
05:42:09.47 |
+33:15:27.3 |
HIP 26931 |
10.75 |
| 2026-05-26 12:00 |
05:42:34.75 |
+33:15:11.9 |
HIP 26931 |
6.14 |
| 2026-05-27 00:00 |
05:43:00.05 |
+33:14:56.6 |
HIP 26931 |
3.95 |
| 2026-05-27 12:00 |
05:43:25.38 |
+33:14:41.3 |
HIP 26931 |
7.05 |
| 2026-05-28 00:00 |
05:43:50.72 |
+33:14:26.1 |
HIP 27051 |
9.50 |
| 2026-05-28 12:00 |
05:44:16.09 |
+33:14:10.9 |
HIP 27051 |
8.22 |
| 2026-05-29 00:00 |
05:44:41.49 |
+33:13:55.8 |
HIP 27051 |
10.07 |
| 2026-05-29 12:00 |
05:45:06.90 |
+33:13:40.7 |
HIP 27051 |
13.85 |
| 2026-05-30 00:00 |
05:45:32.33 |
+33:13:25.7 |
HIP 27051 |
18.42 |
| 2026-05-30 12:00 |
05:45:57.79 |
+33:13:10.7 |
HIP 27252 |
19.38 |
| 2026-05-31 00:00 |
05:46:23.26 |
+33:12:55.7 |
HIP 27252 |
18.26 |
| 2026-05-31 12:00 |
05:46:48.75 |
+33:12:40.8 |
HIP 27252 |
18.66 |
| 2026-06-01 00:00 |
05:47:14.26 |
+33:12:26.0 |
HIP 27252 |
20.48 |
| 2026-06-01 12:00 |
05:47:39.79 |
+33:12:11.2 |
HIP 27252 |
23.40 |
| 2026-06-02 00:00 |
05:48:05.33 |
+33:11:56.4 |
HIP 27528 |
25.10 |