ASTROSAT CZTI

Data Quality Report

Orbit 37037

Creation date: 2024-06-27T21:34:50.439215
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_044T01_9000005270_37037cztM0_level2.evt modeM0/AS1T05_044T01_9000005270_37037cztM0_level2_quad_clean.evt
Size (bytes)94,020,48016,148,160
Size89.7 MB 15.4 MB
Events in quadrant A634,283102,123
Events in quadrant B726,899104,203
Events in quadrant C643,836101,262
Events in quadrant D764,06096,303

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0257928
B0295841
C0257349
D03059109

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161
B0163
C0160
D0161

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A111450.448833%
B111570.627803%
C1105121.085973%
D1104252.264493%

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 2686 1124 0 0 0.00% 0.00%
B 2686 1128 2 2 0.07% 0.18%
C 2686 1120 8 8 0.30% 0.71%
D 2686 1120 15 15 0.56% 1.34%

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 82136 2672.49 141 138 30.7
A 13 6 3181 99.18 141 138 30.7
A 15 237 2319 71.08 141 138 30.7
B 0 190 143350 4892.36 138 134 29.3
B 5 172 29086 989.02 138 134 29.3
B 0 219 4898 162.74 138 134 29.3
C 15 214 51840 1564.31 133 133 33.1
C 0 10 38218 1152.2 133 133 33.1
C 0 207 27289 821.56 133 133 33.1
D 13 249 64696 1859.36 134 129 34.7
D 6 112 58843 1690.81 134 129 34.7
D 2 250 49276 1415.31 134 129 34.7

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