Observation information
- date-obs: 2019-02-09
- time-obs: 21:56:13.834900000
- date-end: 2019-02-10
- time-end: 01:12:10.840400000
- obs_id: C04_009T03_9000002714
- exposure: 9858.74460831
- sourceid: NGC 188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.22392
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C04_009T03_9000002714_18218cztM0_level2.evt
| modeM0/AS1C04_009T03_9000002714_18218cztM0_level2_quad_clean.evt
|
| Size (bytes) | 693,201,600 | 184,452,480 |
| Size | 661.1 MB
| 175.9 MB
|
| Events in quadrant A | 4,557,840 | 1,236,821 |
| Events in quadrant B | 4,668,928 | 1,255,437 |
| Events in quadrant C | 4,596,387 | 1,218,289 |
| Events in quadrant D | 6,491,600 | 1,182,358 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20483 | 2 |
| B | 0 | 20790 | 2 |
| C | 0 | 20388 | 2 |
| D | 0 | 26390 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 206 | 0 |
| B | 0 | 206 | 0 |
| C | 0 | 206 | 0 |
| D | 0 | 206 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 10013 | 30 | 0.299611% |
| B | 10013 | 46 | 0.459403% |
| C | 10013 | 73 | 0.729052% |
| D | 10013 | 323 | 3.225806% |
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 | 11758 | 10015 | 1 | 1 | 0.01% | 0.01% |  |
| B | 11758 | 10015 | 4 | 4 | 0.03% | 0.04% |  |
| C | 11758 | 10015 | 0 | 0 | 0.00% | 0.00% |  |
| D | 11758 | 10015 | 212 | 212 | 1.80% | 2.12% |  |
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 | 15 | 174 | 73306 | 309.29 | 1164 | 1140 | 233.3 |
| A | 0 | 226 | 10182 | 38.75 | 1164 | 1140 | 233.3 |
| A | 3 | 137 | 8925 | 33.36 | 1164 | 1140 | 233.3 |
| B | 0 | 189 | 48566 | 213.0 | 1163 | 1132 | 222.7 |
| B | 12 | 111 | 26341 | 113.2 | 1163 | 1132 | 222.7 |
| B | 11 | 111 | 23233 | 99.24 | 1163 | 1132 | 222.7 |
| C | 14 | 238 | 174820 | 667.76 | 1119 | 1124 | 260.1 |
| C | 3 | 233 | 28912 | 106.83 | 1119 | 1124 | 260.1 |
| C | 8 | 128 | 12036 | 41.95 | 1119 | 1124 | 260.1 |
| D | 1 | 52 | 1460258 | 5334.1 | 1125 | 1091 | 273.6 |
| D | 7 | 238 | 446445 | 1628.02 | 1125 | 1091 | 273.6 |
| D | 2 | 33 | 145100 | 526.43 | 1125 | 1091 | 273.6 |
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 |  |