ASTROSAT CZTI

Data Quality Report

Orbit 05184

Creation date: 2024-06-27T14:52:24.757073
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_214T01_9000000652_05184cztM0_level2.evt modeM0/AS1G05_214T01_9000000652_05184cztM0_level2_quad_clean.evt
Size (bytes)532,480,32077,175,360
Size507.8 MB 73.6 MB
Events in quadrant A3,696,770459,616
Events in quadrant B3,922,431465,958
Events in quadrant C3,519,957468,321
Events in quadrant D4,486,271429,628

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158383
B0162562
C0155172
D0183902

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73712543.445937%
B73712984.042871%
C73711882.550536%
D73713905.291005%

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 9256 7372 11 11 0.12% 0.15%
B 9256 7372 22 22 0.24% 0.30%
C 9256 7373 0 0 0.00% 0.00%
D 9256 7372 203 203 2.19% 2.75%

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 0 247 93215 487.09 920 899 189.5
A 13 170 37467 192.95 920 899 189.5
A 0 226 17588 88.06 920 899 189.5
B 4 80 113563 622.29 930 908 181.0
B 5 70 105419 577.31 930 908 181.0
B 15 204 55855 303.52 930 908 181.0
C 1 16 23007 105.63 896 902 209.3
C 13 61 7380 30.95 896 902 209.3
C 12 4 2781 8.98 896 902 209.3
D 2 33 746204 3408.95 883 856 218.6
D 2 136 108660 493.06 883 856 218.6
D 13 105 101657 461.03 883 856 218.6

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