ASTROSAT CZTI

Data Quality Report

Orbit 24300

Creation date: 2024-06-27T19:04:30.941573
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/AS1A07_145T01_9000003594_24300cztM0_level2.evt modeM0/AS1A07_145T01_9000003594_24300cztM0_level2_quad_clean.evt
Size (bytes)522,279,36098,398,080
Size498.1 MB 93.8 MB
Events in quadrant A3,329,735628,170
Events in quadrant B3,429,064647,821
Events in quadrant C4,078,041625,938
Events in quadrant D4,521,997607,054

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143472
B0146482
C0167812
D0180952

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6762480.709849%
B6763660.975898%
C67631512.232737%
D67631782.631968%

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 8922 6762 0 0 0.00% 0.00%
B 8923 6763 1 1 0.01% 0.01%
C 8923 6763 24 24 0.27% 0.35%
D 8923 6763 64 64 0.72% 0.95%

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 13 254 10890 58.35 862 843 172.2
A 3 137 7730 40.0 862 843 172.2
A 0 226 7437 38.3 862 843 172.2
B 0 230 20111 116.33 867 845 165.6
B 12 111 19759 114.2 867 845 165.6
B 11 111 17677 101.63 867 845 165.6
C 7 247 340162 1720.8 843 851 197.2
C 2 16 306315 1549.14 843 851 197.2
C 14 238 134858 679.61 843 851 197.2
D 8 195 789180 3855.98 844 819 204.5
D 1 52 358511 1749.52 844 819 204.5
D 12 233 107922 523.85 844 819 204.5

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