ASTROSAT CZTI

Data Quality Report

Orbit 37796

Creation date: 2024-06-27T21:44:34.272649
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/AS1A10_103T06_9000005348_37796cztM0_level2.evt modeM0/AS1A10_103T06_9000005348_37796cztM0_level2_quad_clean.evt
Size (bytes)22,812,4804,740,480
Size21.8 MB 4.5 MB
Events in quadrant A126,03530,960
Events in quadrant B193,35130,394
Events in quadrant C116,11731,189
Events in quadrant D237,30727,305

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05241
B07320
C04490
D08510

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A21210.471698%
B212198.962264%
C21200.000000%
D2123014.150943%

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 212 212 0 0 0.00% 0.00%
B 212 212 7 7 3.30% 3.30%
C 212 212 0 0 0.00% 0.00%
D 212 212 13 13 6.13% 6.13%

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 10 83 11576 1458.41 28 27 7.9
A 15 222 1588 197.12 28 27 7.9
A 12 189 1579 195.99 28 27 7.9
B 4 232 34561 4777.24 26 26 7.2
B 0 189 22538 3114.09 26 26 7.2
B 0 229 12170 1679.88 26 26 7.2
C 15 214 9221 1156.85 26 26 7.9
C 12 250 1555 192.37 26 26 7.9
C 0 207 789 96.0 26 26 7.9
D 13 249 119450 14636.85 25 24 8.2
D 12 235 5576 680.45 25 24 8.2
D 10 199 5305 647.24 25 24 8.2

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