Observation information
- date-obs: 2017-02-20
- time-obs: 08:36:36.354000000
- date-end: 2017-02-20
- time-end: 10:49:01.357900000
- obs_id: A02_024T01_9000001044
- exposure: 2742.63285019
- sourceid: NGC 4388
- observer: labani
- ra_pnt: 186.4448
- dec_pnt: 12.66209
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_024T01_9000001044_07568cztM0_level2.evt
| modeM0/AS1A02_024T01_9000001044_07568cztM0_level2_quad_clean.evt
|
| Size (bytes) | 529,963,200 | 64,342,080 |
| Size | 505.4 MB
| 61.4 MB
|
| Events in quadrant A | 3,576,739 | 378,504 |
| Events in quadrant B | 3,424,581 | 382,978 |
| Events in quadrant C | 4,484,504 | 371,832 |
| Events in quadrant D | 4,124,375 | 361,963 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14694 | 3 |
| B | 0 | 14160 | 2 |
| C | 0 | 17606 | 2 |
| D | 0 | 16612 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 15 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6489 | 188 | 2.897211% |
| B | 6489 | 63 | 0.970874% |
| C | 6489 | 60 | 0.924642% |
| D | 6489 | 181 | 2.789336% |
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 | 7759 | 6489 | 93 | 93 | 1.20% | 1.43% |  |
| B | 7759 | 6489 | 1 | 1 | 0.01% | 0.02% |  |
| C | 7759 | 6489 | 3 | 3 | 0.04% | 0.05% |  |
| D | 7759 | 6489 | 89 | 89 | 1.15% | 1.37% |  |
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 | 128 | 301520 | 1760.24 | 847 | 828 | 170.8 |
| A | 3 | 1 | 8642 | 45.74 | 847 | 828 | 170.8 |
| A | 0 | 226 | 8132 | 42.75 | 847 | 828 | 170.8 |
| B | 11 | 51 | 79807 | 494.19 | 849 | 832 | 159.8 |
| B | 0 | 214 | 38785 | 237.49 | 849 | 832 | 159.8 |
| B | 12 | 111 | 16528 | 98.22 | 849 | 832 | 159.8 |
| C | 9 | 68 | 1205685 | 6342.59 | 824 | 828 | 190.0 |
| C | 8 | 229 | 44722 | 231.06 | 824 | 828 | 190.0 |
| C | 1 | 16 | 20196 | 101.95 | 824 | 828 | 190.0 |
| D | 2 | 244 | 503097 | 2461.34 | 831 | 807 | 204.1 |
| D | 2 | 152 | 216431 | 1056.61 | 831 | 807 | 204.1 |
| D | 5 | 233 | 150804 | 735.02 | 831 | 807 | 204.1 |
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 |  |