ASTROSAT CZTI

Data Quality Report

Orbit 16283

Creation date: 2024-06-27T17:20:20.399419
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/AS1A05_072T05_9000002394_16283cztM0_level2.evt modeM0/AS1A05_072T05_9000002394_16283cztM0_level2_quad_clean.evt
Size (bytes)481,334,40068,353,920
Size459.0 MB 65.2 MB
Events in quadrant A3,486,151406,050
Events in quadrant B3,670,848418,003
Events in quadrant C3,454,423414,362
Events in quadrant D3,549,214402,356

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139673
B0148022
C0139582
D0142372

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6139881.433458%
B6139861.400880%
C61391031.677798%
D6139851.384590%

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 7505 6141 33 33 0.44% 0.54%
B 7505 6141 5 5 0.07% 0.08%
C 7505 6141 0 0 0.00% 0.00%
D 7505 6141 33 33 0.44% 0.54%

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 119369 706.7 852 840 167.7
A 9 143 90922 537.09 852 840 167.7
A 0 226 7396 39.09 852 840 167.7
B 0 189 195039 1213.89 859 841 160.0
B 0 198 45661 280.16 859 841 160.0
B 15 35 38244 233.8 859 841 160.0
C 14 238 131351 689.5 831 840 189.3
C 3 233 73710 384.98 831 840 189.3
C 0 207 8974 42.97 831 840 189.3
D 1 52 235705 1154.43 840 819 203.5
D 10 70 105344 513.72 840 819 203.5
D 13 104 28938 138.2 840 819 203.5

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