ASTROSAT CZTI

Data Quality Report

Orbit 05340

Creation date: 2024-06-27T14:54:05.234773
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1G05_152T01_9000000676_05340cztM0_level2.evt modeM0/AS1G05_152T01_9000000676_05340cztM0_level2_quad_clean.evt
Size (bytes)202,512,96036,973,440
Size193.1 MB 35.3 MB
Events in quadrant A1,282,253238,268
Events in quadrant B1,412,064244,856
Events in quadrant C1,513,062241,531
Events in quadrant D1,759,309220,445

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A053062
B057093
C061541
D068963

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0520
B0520
C0520
D0520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2416421.738411%
B2415773.188406%
C2416311.283113%
D24151576.501035%

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 3721 2416 2 2 0.05% 0.08%
B 3721 2416 11 11 0.30% 0.46%
C 3721 2417 0 0 0.00% 0.00%
D 3721 2417 122 122 3.28% 5.05%

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 13 251 84927 1303.46 306 299 64.9
A 15 174 13039 196.22 306 299 64.9
A 0 50 6382 93.69 306 299 64.9
B 10 16 99751 1655.28 311 303 60.1
B 15 204 45789 757.1 311 303 60.1
B 4 80 27120 446.36 311 303 60.1
C 1 16 337704 4791.23 300 301 70.4
C 13 61 2430 30.23 300 301 70.4
C 14 67 2145 26.19 300 301 70.4
D 2 63 288390 3900.97 292 281 73.9
D 9 82 190117 2570.36 292 281 73.9
D 13 105 53028 714.19 292 281 73.9

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