Observation information
- date-obs: 2017-04-17
- time-obs: 00:16:54.384300000
- date-end: 2017-04-17
- time-end: 02:50:41.376900000
- obs_id: A03_062T01_9000001176
- exposure: 4408.21205544
- sourceid: NGC 4147
- observer: ananta
- ra_pnt: 182.5262
- dec_pnt: 18.54264
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_062T01_9000001176_08392cztM0_level2.evt
| modeM0/AS1A03_062T01_9000001176_08392cztM0_level2_quad_clean.evt
|
| Size (bytes) | 476,997,120 | 93,648,960 |
| Size | 454.9 MB
| 89.3 MB
|
| Events in quadrant A | 3,699,060 | 583,683 |
| Events in quadrant B | 3,506,927 | 607,811 |
| Events in quadrant C | 3,243,429 | 590,689 |
| Events in quadrant D | 3,522,178 | 567,590 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15327 | 3 |
| B | 0 | 14865 | 2 |
| C | 0 | 14280 | 2 |
| D | 0 | 15314 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6977 | 262 | 3.755196% |
| B | 6977 | 66 | 0.945965% |
| C | 6977 | 23 | 0.329655% |
| D | 6977 | 82 | 1.175290% |
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 | 9227 | 6979 | 1 | 1 | 0.01% | 0.01% |  |
| B | 9227 | 6979 | 3 | 3 | 0.03% | 0.04% |  |
| C | 9227 | 6979 | 5 | 5 | 0.05% | 0.07% |  |
| D | 9227 | 6979 | 59 | 59 | 0.64% | 0.85% |  |
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 | 14 | 111 | 465845 | 2693.36 | 838 | 820 | 172.7 |
| A | 15 | 236 | 13805 | 75.21 | 838 | 820 | 172.7 |
| A | 0 | 226 | 7724 | 39.99 | 838 | 820 | 172.7 |
| B | 5 | 255 | 86668 | 528.51 | 854 | 834 | 162.4 |
| B | 0 | 214 | 34161 | 205.21 | 854 | 834 | 162.4 |
| B | 4 | 81 | 24763 | 147.34 | 854 | 834 | 162.4 |
| C | 1 | 16 | 27838 | 141.13 | 824 | 826 | 191.4 |
| C | 13 | 61 | 6237 | 28.27 | 824 | 826 | 191.4 |
| C | 12 | 4 | 2248 | 7.43 | 824 | 826 | 191.4 |
| D | 2 | 14 | 241151 | 1226.12 | 813 | 792 | 196.0 |
| D | 2 | 136 | 39843 | 199.21 | 813 | 792 | 196.0 |
| D | 14 | 34 | 30643 | 152.28 | 813 | 792 | 196.0 |
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 |  |