ASTROSAT CZTI

Data Quality Report

Orbit 32049

Creation date: 2024-06-27T20:35:51.105799
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/AS1T04_046T01_9000004680_32049cztM0_level2.evt modeM0/AS1T04_046T01_9000004680_32049cztM0_level2_quad_clean.evt
Size (bytes)913,936,320168,526,080
Size871.6 MB 160.7 MB
Events in quadrant A4,897,3611,171,465
Events in quadrant B7,809,3461,136,544
Events in quadrant C5,382,1341,131,321
Events in quadrant D8,979,7791,037,030

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020489698
B0302671135
C022188720
D033597953

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0282
B0270
C0281
D0281

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01906
B01908
C01908
D01908

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A90671661.830815%
B90334865.380272%
C90765616.181137%
D9050138515.303867%

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 12045 9136 0 0 0.00% 0.00%
B 12010 9103 171 171 1.42% 1.88%
C 12039 9162 47 47 0.39% 0.51%
D 12041 9129 1241 1241 10.31% 13.59%

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 13 254 17392 65.5 1262 1242 246.6
A 13 6 13433 49.44 1262 1242 246.6
A 3 137 11335 40.93 1262 1242 246.6
B 6 159 2367100 10551.26 1213 1186 224.2
B 5 172 553659 2463.86 1213 1186 224.2
B 10 245 38244 165.27 1213 1186 224.2
C 14 238 257692 954.76 1190 1202 268.6
C 0 10 224628 831.68 1190 1202 268.6
C 14 254 86870 318.89 1190 1202 268.6
D 12 227 3402768 12521.13 1164 1135 271.7
D 8 195 1093533 4021.03 1164 1135 271.7
D 2 234 45004 161.48 1164 1135 271.7

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