ASTROSAT CZTI

Data Quality Report

Orbit 38933

Creation date: 2024-06-27T21:58:19.886973
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/AS1T05_064T01_9000005416_38933cztM0_level2.fits modeM0/AS1T05_064T01_9000005416_38933cztM0_level2_quad_clean.evt
Size (bytes)686,168,640175,608,000
Size654.4 MB 167.5 MB
Events in quadrant A5,674,9071,176,224
Events in quadrant B5,486,2741,206,592
Events in quadrant C5,075,0681,159,787
Events in quadrant D8,320,9081,021,771

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02220
B02220
C02220
D02220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02332612
B02358813
C02194714
D03211414

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10869360.331217%
B10867950.874206%
C10866120.110436%
D108705935.455382%

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 13649 10874 22 22 0.16% 0.20%
B 13649 10873 63 63 0.46% 0.58%
C 13649 10873 6 6 0.04% 0.06%
D 13649 10875 574 574 4.21% 5.28%

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 774892 3190.18 1206 1182 242.5
A 13 248 118538 483.89 1206 1182 242.5
A 6 10 100042 407.62 1206 1182 242.5
B 5 184 249374 1081.04 1192 1156 229.6
B 5 172 230566 999.12 1192 1156 229.6
B 0 190 121281 523.17 1192 1156 229.6
C 15 214 441277 1626.35 1175 1183 270.6
C 10 70 12062 40.2 1175 1183 270.6
C 1 23 8857 28.36 1175 1183 270.6
D 2 250 1545681 5561.74 1149 1115 277.7
D 12 227 880956 3168.17 1149 1115 277.7
D 2 16 404043 1450.88 1149 1115 277.7

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