ASTROSAT CZTI

Data Quality Report

Orbit 04302

Creation date: 2024-06-27T14:40:08.098515
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_219T01_9000000540_04302cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04302cztM0_level2_quad_clean.evt
Size (bytes)589,812,48084,597,120
Size562.5 MB 80.7 MB
Events in quadrant A3,469,777534,114
Events in quadrant B3,603,954527,638
Events in quadrant C3,318,168520,898
Events in quadrant D6,977,354472,160

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154305
B0157334
C0151724
D0259324

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72671031.417366%
B7267891.224714%
C7267420.577955%
D726798013.485620%

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 8697 7271 24 24 0.28% 0.33%
B 8697 7271 15 15 0.17% 0.21%
C 8697 7272 3 3 0.03% 0.04%
D 8697 7270 886 886 10.19% 12.19%

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 15 234 73479 420.64 843 824 172.7
A 0 50 58635 334.7 843 824 172.7
A 13 251 29943 168.58 843 824 172.7
B 14 167 75658 452.5 850 831 165.4
B 7 252 62355 372.06 850 831 165.4
B 10 16 45016 267.2 850 831 165.4
C 9 247 98373 511.97 813 816 190.6
C 8 128 18935 95.09 813 816 190.6
C 8 112 10479 50.71 813 816 190.6
D 13 53 3651800 19158.43 777 756 190.6
D 2 136 181594 948.93 777 756 190.6
D 13 223 48228 249.1 777 756 190.6

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