메타데이터
| 항목 |
값 |
| Designation |
C/2011 KP36 (Spacewatch) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2016-05-26T20:57:18.164160Z |
| Orbit solution date (soln_date, UTC) |
2023-05-10T17:42:22Z |
| Obs used |
3711 |
| NEO |
- |
| M1 |
7.500 |
| K1 |
7.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2016-06-22.0000000 |
| e |
0.87286835 |
| q (au) |
4.883307 |
| a (au) |
38.411417 |
| i (deg) |
18.986783 |
| Ω (om, deg) |
173.400328 |
| ω (w, deg) |
180.594874 |
| M (ma, deg) |
0.108169 |
밝기
산란 + 전체 선형
$$
M_a = (2.585 + 4.026\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
2.585 |
| n |
4.026 |
| gf |
0.978 |
| gb |
-0.729 |
| k |
1.000 |
| δ90 |
9.997 |
| 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 |
| 2012-07-24 |
2015-11-05 |
+6.8509 |
-5.054 |
| 2016-06-09 |
2017-09-25 |
-12.0140 |
+8.444 |
| 2017-09-25 |
2020-12-25 |
+1.9640 |
-1.986 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
08:02:13.87 |
+05:49:17.4 |
HIP 39268 |
37.78 |
| 2026-05-12 12:00 |
08:02:16.91 |
+05:49:30.8 |
HIP 39453 |
38.14 |
| 2026-05-13 00:00 |
08:02:19.98 |
+05:49:44.1 |
HIP 39453 |
37.49 |
| 2026-05-13 12:00 |
08:02:23.10 |
+05:49:57.1 |
HIP 39453 |
36.85 |
| 2026-05-14 00:00 |
08:02:26.26 |
+05:50:09.9 |
HIP 39453 |
36.21 |
| 2026-05-14 12:00 |
08:02:29.46 |
+05:50:22.5 |
HIP 39453 |
35.58 |
| 2026-05-15 00:00 |
08:02:32.69 |
+05:50:34.8 |
HIP 39453 |
34.95 |
| 2026-05-15 12:00 |
08:02:35.97 |
+05:50:47.0 |
HIP 39453 |
34.32 |
| 2026-05-16 00:00 |
08:02:39.29 |
+05:50:58.9 |
HIP 39453 |
33.71 |
| 2026-05-16 12:00 |
08:02:42.65 |
+05:51:10.6 |
HIP 39453 |
33.10 |
| 2026-05-17 00:00 |
08:02:46.05 |
+05:51:22.1 |
HIP 39453 |
32.50 |
| 2026-05-17 12:00 |
08:02:49.49 |
+05:51:33.3 |
HIP 39453 |
31.91 |
| 2026-05-18 00:00 |
08:02:52.97 |
+05:51:44.4 |
HIP 39453 |
31.34 |
| 2026-05-18 12:00 |
08:02:56.49 |
+05:51:55.2 |
HIP 39453 |
30.78 |
| 2026-05-19 00:00 |
08:03:00.05 |
+05:52:05.7 |
HIP 39453 |
30.23 |
| 2026-05-19 12:00 |
08:03:03.64 |
+05:52:16.1 |
HIP 39453 |
29.70 |
| 2026-05-20 00:00 |
08:03:07.27 |
+05:52:26.2 |
HIP 39453 |
29.19 |
| 2026-05-20 12:00 |
08:03:10.94 |
+05:52:36.1 |
HIP 39453 |
28.70 |
| 2026-05-21 00:00 |
08:03:14.65 |
+05:52:45.8 |
HIP 39453 |
28.23 |
| 2026-05-21 12:00 |
08:03:18.40 |
+05:52:55.3 |
HIP 39453 |
27.79 |
| 2026-05-22 00:00 |
08:03:22.18 |
+05:53:04.5 |
HIP 39453 |
27.37 |
| 2026-05-22 12:00 |
08:03:26.00 |
+05:53:13.5 |
HIP 39453 |
26.98 |
| 2026-05-23 00:00 |
08:03:29.85 |
+05:53:22.2 |
HIP 39540 |
26.32 |
| 2026-05-23 12:00 |
08:03:33.75 |
+05:53:30.8 |
HIP 39540 |
25.51 |
| 2026-05-24 00:00 |
08:03:37.67 |
+05:53:39.1 |
HIP 39540 |
24.72 |
| 2026-05-24 12:00 |
08:03:41.64 |
+05:53:47.2 |
HIP 39540 |
23.94 |
| 2026-05-25 00:00 |
08:03:45.64 |
+05:53:55.0 |
HIP 39540 |
23.17 |
| 2026-05-25 12:00 |
08:03:49.67 |
+05:54:02.7 |
HIP 39540 |
22.41 |
| 2026-05-26 00:00 |
08:03:53.74 |
+05:54:10.1 |
HIP 39540 |
21.68 |
| 2026-05-26 12:00 |
08:03:57.84 |
+05:54:17.3 |
HIP 39540 |
20.96 |
| 2026-05-27 00:00 |
08:04:01.98 |
+05:54:24.2 |
HIP 39540 |
20.27 |
| 2026-05-27 12:00 |
08:04:06.15 |
+05:54:30.9 |
HIP 39540 |
19.61 |
| 2026-05-28 00:00 |
08:04:10.36 |
+05:54:37.4 |
HIP 39540 |
18.99 |
| 2026-05-28 12:00 |
08:04:14.60 |
+05:54:43.7 |
HIP 39591 |
18.10 |
| 2026-05-29 00:00 |
08:04:18.87 |
+05:54:49.7 |
HIP 39591 |
17.11 |
| 2026-05-29 12:00 |
08:04:23.17 |
+05:54:55.6 |
HIP 39591 |
16.12 |
| 2026-05-30 00:00 |
08:04:27.51 |
+05:55:01.1 |
HIP 39591 |
15.14 |
| 2026-05-30 12:00 |
08:04:31.88 |
+05:55:06.5 |
HIP 39591 |
14.17 |
| 2026-05-31 00:00 |
08:04:36.28 |
+05:55:11.6 |
HIP 39591 |
13.20 |
| 2026-05-31 12:00 |
08:04:40.72 |
+05:55:16.5 |
HIP 39591 |
12.24 |
| 2026-06-01 00:00 |
08:04:45.18 |
+05:55:21.2 |
HIP 39591 |
11.31 |
| 2026-06-01 12:00 |
08:04:49.68 |
+05:55:25.6 |
HIP 39591 |
10.40 |
| 2026-06-02 00:00 |
08:04:54.21 |
+05:55:29.9 |
HIP 39591 |
9.52 |