ASTROSAT CZTI

Data Quality Report

Orbit 03105

Creation date: 2024-06-27T14:24:41.997019
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_237T03_9000000426_03105cztM0_level2.evt modeM0/AS1G05_237T03_9000000426_03105cztM0_level2_quad_clean.evt
Size (bytes)724,354,560131,883,840
Size690.8 MB 125.8 MB
Events in quadrant A4,922,979824,447
Events in quadrant B6,101,599808,599
Events in quadrant C4,946,969821,434
Events in quadrant D5,239,710798,074

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0219642
B0253651
C0222921
D0233271

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02160
B02160
C02160
D02160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10709510.476235%
B107091971.839574%
C10709570.532263%
D10709840.784387%

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 11204 10710 10 10 0.09% 0.09%
B 11204 10710 112 112 1.00% 1.05%
C 11204 10710 13 13 0.12% 0.12%
D 11204 10710 38 38 0.34% 0.35%

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 8 15 143313 576.45 1205 1180 246.6
A 0 5 59215 235.37 1205 1180 246.6
A 0 117 22397 86.05 1205 1180 246.6
B 1 223 692565 2958.68 1215 1191 233.7
B 15 204 218222 928.77 1215 1191 233.7
B 0 219 182190 774.57 1215 1191 233.7
C 1 16 105251 381.53 1167 1176 272.8
C 6 80 80891 292.23 1167 1176 272.8
C 14 234 41323 147.18 1167 1176 272.8
D 13 114 516906 1834.55 1156 1125 281.1
D 7 223 64823 226.56 1156 1125 281.1
D 13 239 51818 180.31 1156 1125 281.1

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