ASTROSAT CZTI

Data Quality Report

Orbit 24366

Creation date: 2024-06-27T19:05:14.954333
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/AS1A07_145T01_9000003594_24366cztM0_level2.evt modeM0/AS1A07_145T01_9000003594_24366cztM0_level2_quad_clean.evt
Size (bytes)586,353,60087,436,800
Size559.2 MB 83.4 MB
Events in quadrant A3,133,494544,412
Events in quadrant B3,211,177563,931
Events in quadrant C5,032,668543,592
Events in quadrant D5,921,363523,501

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138341
B0139471
C0193071
D0222631

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67711161.713189%
B67721442.126403%
C67725578.225044%
D67715237.724118%

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 6996 6772 0 0 0.00% 0.00%
B 6997 6773 2 2 0.03% 0.03%
C 6997 6773 334 334 4.77% 4.93%
D 6996 6772 397 397 5.67% 5.86%

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 9520 53.28 810 792 163.8
A 3 137 7777 42.64 810 792 163.8
A 0 226 6845 36.95 810 792 163.8
B 0 230 28097 174.59 808 786 156.4
B 12 111 19649 120.58 808 786 156.4
B 11 111 17378 106.07 808 786 156.4
C 7 247 1937657 10854.11 760 765 178.4
C 14 238 119994 668.14 760 765 178.4
C 3 233 6429 31.74 760 765 178.4
D 9 35 1236063 6569.22 770 746 188.0
D 7 238 869043 4617.47 770 746 188.0
D 12 233 437143 2320.69 770 746 188.0

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