ASTROSAT CZTI

Data Quality Report

Orbit 40005

Creation date: 2024-06-27T22:11:10.891460
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/AS1A12_054T03_9000005516_40005cztM0_level2.fits modeM0/AS1A12_054T03_9000005516_40005cztM0_level2_quad_clean.evt
Size (bytes)676,304,640170,124,480
Size645.0 MB 162.2 MB
Events in quadrant A5,678,3041,145,216
Events in quadrant B5,784,8591,154,150
Events in quadrant C5,211,6411,136,395
Events in quadrant D7,529,565974,037

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02200
B02200
C02200
D02200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0236194
B0245693
C0222723
D0302113

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10696930.869484%
B106963032.832835%
C10696490.458115%
D106968678.105834%

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 13532 10698 55 55 0.41% 0.51%
B 13532 10697 162 162 1.20% 1.51%
C 13532 10697 41 41 0.30% 0.38%
D 13532 10697 698 698 5.16% 6.53%

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 868918 3627.23 1167 1142 239.2
A 13 248 241163 1003.26 1167 1142 239.2
A 13 6 16073 62.41 1167 1142 239.2
B 4 171 1084411 4842.87 1153 1120 223.7
B 5 255 64245 282.2 1153 1120 223.7
B 0 221 31034 133.73 1153 1120 223.7
C 15 214 440581 1646.86 1145 1154 266.8
C 14 254 96766 358.33 1145 1154 266.8
C 15 208 93809 347.25 1145 1154 266.8
D 12 227 1425506 5256.31 1095 1064 271.0
D 2 250 1141492 4208.28 1095 1064 271.0
D 13 249 526500 1938.9 1095 1064 271.0

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