메타데이터
| 항목 |
값 |
| Designation |
13P/Olbers |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2024-06-30T17:39:58.435200Z |
| Orbit solution date (soln_date, UTC) |
2026-03-12T09:29:25Z |
| Obs used |
2481 |
| NEO |
Yes |
| M1 |
6.900 |
| K1 |
18.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2020-09-30.0000000 |
| e |
0.92970999 |
| q (au) |
1.172573 |
| a (au) |
16.681923 |
| i (deg) |
44.624812 |
| Ω (om, deg) |
85.862691 |
| ω (w, deg) |
64.528341 |
| M (ma, deg) |
340.186016 |
밝기
산란 + 전체 선형
$$
M_a = (6.023 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
6.023 |
| n |
6.000 |
| gf |
0.998 |
| gb |
-0.963 |
| k |
1.000 |
| δ90 |
9.995 |
| 파라미터 |
기호 |
범위 |
설명 |
| 태양·지구거리 1 AU에서의 절대등급 |
H0 |
-5 to 20 |
혜성의 고유 밝기 |
| 광도 기울기 파라미터 |
n |
2 to 6 |
태양거리 변화에 따른 밝기 변화율 |
| 전방 산란 비대칭 계수 |
gf |
0.8 to 1 |
전방 산란의 강도 |
| 후방 산란 비대칭 계수 |
gb |
-1 to -0.5 |
후방 산란의 강도 |
| 분할 계수 |
k |
0.8 to 1 |
전·후방 산란 기여도 비율 |
| 먼지/가스 밝기 비 |
δ90 |
1 to 10 |
코마에서 먼지 산란 대비 가스 방출의 상대 기여 |
참고: EPSC-DPS2025-160
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 2023-08-13 |
2024-06-30 |
+9.7493 |
-3.041 |
| 2024-06-30 |
2025-07-31 |
-0.2703 |
-1.962 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
19:23:14.30 |
-39:20:17.3 |
HIP 95326 |
10.13 |
| 2026-06-01 12:00 |
19:22:59.54 |
-39:22:06.3 |
HIP 95326 |
13.18 |
| 2026-06-02 00:00 |
19:22:44.65 |
-39:23:54.9 |
HIP 95326 |
16.38 |
| 2026-06-02 12:00 |
19:22:29.61 |
-39:25:43.0 |
HIP 95326 |
19.65 |
| 2026-06-03 00:00 |
19:22:14.43 |
-39:27:30.7 |
HIP 95243 |
20.29 |
| 2026-06-03 12:00 |
19:21:59.12 |
-39:29:17.9 |
HIP 95243 |
19.52 |
| 2026-06-04 00:00 |
19:21:43.68 |
-39:31:04.7 |
HIP 95243 |
19.37 |
| 2026-06-04 12:00 |
19:21:28.10 |
-39:32:51.0 |
HIP 95243 |
19.85 |
| 2026-06-05 00:00 |
19:21:12.39 |
-39:34:36.8 |
HIP 95243 |
20.93 |
| 2026-06-05 12:00 |
19:20:56.55 |
-39:36:22.1 |
HIP 95243 |
22.53 |
| 2026-06-06 00:00 |
19:20:40.58 |
-39:38:06.8 |
HIP 95072 |
21.24 |
| 2026-06-06 12:00 |
19:20:24.48 |
-39:39:51.1 |
HIP 95072 |
19.59 |
| 2026-06-07 00:00 |
19:20:08.26 |
-39:41:34.8 |
HIP 95072 |
18.50 |
| 2026-06-07 12:00 |
19:19:51.91 |
-39:43:17.9 |
HIP 94902 |
16.84 |
| 2026-06-08 00:00 |
19:19:35.45 |
-39:45:00.5 |
HIP 94902 |
15.77 |
| 2026-06-08 12:00 |
19:19:18.86 |
-39:46:42.5 |
HIP 94902 |
15.45 |
| 2026-06-09 00:00 |
19:19:02.16 |
-39:48:24.0 |
HIP 94902 |
15.96 |
| 2026-06-09 12:00 |
19:18:45.34 |
-39:50:04.8 |
HIP 94902 |
17.23 |
| 2026-06-10 00:00 |
19:18:28.40 |
-39:51:45.0 |
HIP 94792 |
19.09 |
| 2026-06-10 12:00 |
19:18:11.36 |
-39:53:24.6 |
HIP 94792 |
15.58 |
| 2026-06-11 00:00 |
19:17:54.20 |
-39:55:03.6 |
HIP 94792 |
12.15 |
| 2026-06-11 12:00 |
19:17:36.93 |
-39:56:41.9 |
HIP 94792 |
8.92 |
| 2026-06-12 00:00 |
19:17:19.56 |
-39:58:19.6 |
HIP 94792 |
6.23 |
| 2026-06-12 12:00 |
19:17:02.08 |
-39:59:56.6 |
HIP 94792 |
5.07 |
| 2026-06-13 00:00 |
19:16:44.50 |
-40:01:32.9 |
HIP 94792 |
6.36 |
| 2026-06-13 12:00 |
19:16:26.82 |
-40:03:08.6 |
HIP 94792 |
9.13 |
| 2026-06-14 00:00 |
19:16:09.04 |
-40:04:43.5 |
HIP 94654 |
7.91 |
| 2026-06-14 12:00 |
19:15:51.17 |
-40:06:17.8 |
HIP 94654 |
7.25 |
| 2026-06-15 00:00 |
19:15:33.20 |
-40:07:51.3 |
HIP 94654 |
8.41 |
| 2026-06-15 12:00 |
19:15:15.14 |
-40:09:24.1 |
HIP 94654 |
10.83 |
| 2026-06-16 00:00 |
19:14:56.99 |
-40:10:56.2 |
HIP 94580 |
10.41 |
| 2026-06-16 12:00 |
19:14:38.75 |
-40:12:27.5 |
HIP 94580 |
9.35 |
| 2026-06-17 00:00 |
19:14:20.43 |
-40:13:58.0 |
HIP 94580 |
9.79 |
| 2026-06-17 12:00 |
19:14:02.03 |
-40:15:27.8 |
HIP 94580 |
11.55 |
| 2026-06-18 00:00 |
19:13:43.55 |
-40:16:56.8 |
HIP 94580 |
14.17 |
| 2026-06-18 12:00 |
19:13:24.99 |
-40:18:25.0 |
HIP 94580 |
17.26 |
| 2026-06-19 00:00 |
19:13:06.36 |
-40:19:52.4 |
HIP 94580 |
20.61 |
| 2026-06-19 12:00 |
19:12:47.66 |
-40:21:19.0 |
HIP 94431 |
23.63 |
| 2026-06-20 00:00 |
19:12:28.88 |
-40:22:44.8 |
HIP 94431 |
23.25 |
| 2026-06-20 12:00 |
19:12:10.04 |
-40:24:09.8 |
HIP 94431 |
23.51 |
| 2026-06-21 00:00 |
19:11:51.14 |
-40:25:33.9 |
HIP 94159 |
21.88 |
| 2026-06-21 12:00 |
19:11:32.17 |
-40:26:57.2 |
HIP 94159 |
18.02 |
| 2026-06-22 00:00 |
19:11:13.14 |
-40:28:19.7 |
HIP 94159 |
14.17 |