Observation information
- date-obs: 2015-12-13
- time-obs: 14:45:30.592300000
- date-end: 2015-12-16
- time-end: 03:12:32.997700000
- obs_id: P01_997T03_9000000216
- exposure: 153966.578135
- sourceid: 4U 1847+78
- observer: annapurni
- ra_pnt: 280.5374
- dec_pnt: 79.77142
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_997T03_9000000216cztM0_level2.fits
| modeM0/AS1P01_997T03_9000000216cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,410,384,960 | 2,205,072,000 |
| Size | 1.3 GB
| 2.1 GB
|
| Events in quadrant A | 8,276,522 | 14,894,678 |
| Events in quadrant B | 8,162,392 | 14,811,038 |
| Events in quadrant C | 7,995,404 | 13,863,719 |
| Events in quadrant D | 6,178,976 | 11,137,404 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 754242 | 0 |
| B | 0 | 778345 | 0 |
| C | 0 | 762312 | 0 |
| D | 0 | 851796 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3564 | 0 |
| B | 0 | 3568 | 0 |
| C | 0 | 3570 | 0 |
| D | 0 | 3568 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 206 | 0 |
| B | 0 | 218 | 0 |
| C | 0 | 206 | 0 |
| D | 0 | 219 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 176505 | 1108 | 0.627744% |
| B | 176502 | 1042 | 0.590362% |
| C | 176510 | 1115 | 0.631692% |
| D | 176402 | 25320 | 14.353579% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 216607 | 176289 | 0 | 0 | 0.00% | 0.00% |  |
| B | 216607 | 176442 | 0 | 0 | 0.00% | 0.00% |  |
| C | 216607 | 176489 | 0 | 0 | 0.00% | 0.00% |  |
| D | 216607 | 166359 | 0 | 0 | 0.00% | 0.00% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 0 | 29 | 7560 | 11.18 | 2142 | 1998 | 497.5 |
| A | 7 | 110 | 7553 | 11.17 | 2142 | 1998 | 497.5 |
| A | 14 | 188 | 6173 | 8.39 | 2142 | 1998 | 497.5 |
| B | 2 | 9 | 6540 | 11.49 | 2159 | 2045 | 391.3 |
| B | 5 | 128 | 5497 | 8.82 | 2159 | 2045 | 391.3 |
| B | 14 | 254 | 5496 | 8.82 | 2159 | 2045 | 391.3 |
| C | 12 | 241 | 5630 | 7.16 | 2113 | 1953 | 513.9 |
| C | 2 | 191 | 5300 | 6.51 | 2113 | 1953 | 513.9 |
| C | 9 | 242 | 5286 | 6.49 | 2113 | 1953 | 513.9 |
| D | 1 | 19 | 4627 | 7.22 | 1760 | 1611 | 417.5 |
| D | 6 | 231 | 4357 | 6.58 | 1760 | 1611 | 417.5 |
| D | 6 | 44 | 4336 | 6.53 | 1760 | 1611 | 417.5 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |