ASTROSAT CZTI

Data Quality Report

Orbit 29288

Creation date: 2024-06-27T20:02:24.907210
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/AS1A10_050T01_9000004212_29288cztM0_level2.evt modeM0/AS1A10_050T01_9000004212_29288cztM0_level2_quad_clean.evt
Size (bytes)877,204,80082,215,360
Size836.6 MB 78.4 MB
Events in quadrant A3,419,435520,982
Events in quadrant B3,903,618520,657
Events in quadrant C9,725,068480,738
Events in quadrant D9,038,011471,087

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147152
B0161952
C0339342
D0317712

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71141161.630588%
B71142944.132696%
C7114233732.850717%
D7114157722.167557%

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 7354 7117 4 4 0.05% 0.06%
B 7354 7117 74 74 1.01% 1.04%
C 7354 7117 1173 1173 15.95% 16.48%
D 7354 7116 1169 1169 15.90% 16.43%

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 14269 75.36 879 859 177.9
A 15 174 12559 65.75 879 859 177.9
A 14 31 9282 47.33 879 859 177.9
B 10 245 223824 1343.76 865 843 165.9
B 5 172 161937 970.81 865 843 165.9
B 0 230 52289 310.03 865 843 165.9
C 3 233 6491960 36725.35 752 759 176.7
C 14 238 179643 1012.07 752 759 176.7
C 14 254 100357 563.5 752 759 176.7
D 1 52 2224511 11602.33 786 764 191.7
D 8 195 1904234 9931.3 786 764 191.7
D 12 233 866026 4514.48 786 764 191.7

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