ASTROSAT CZTI

Data Quality Report

Orbit 42802

Creation date: 2024-06-27T22:44:24.390524
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/AS1A05_013T01_9000005822_42802cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42802cztM0_level2_quad_clean.evt
Size (bytes)127,082,88035,766,720
Size121.2 MB 34.1 MB
Events in quadrant A1,247,256237,976
Events in quadrant B966,859231,924
Events in quadrant C1,087,332238,134
Events in quadrant D1,235,214221,730

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050091
B044211
C045561
D051221

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A1139778384570408139775415681070
B1-1-1
C1-1-1
D1-1-1

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2118160.755430%
B2118100.472144%
C2118130.613787%
D2118120.566572%

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 2118 2118 15 15 0.71% 0.71%
B 2118 2118 7 7 0.33% 0.33%
C 2118 2118 16 16 0.76% 0.76%
D 2118 2118 16 16 0.76% 0.76%

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 281831 5764.0 230 225 48.9
A 13 248 66853 1363.76 230 225 48.9
A 13 6 4791 93.46 230 225 48.9
B 15 85 30345 659.93 222 216 45.7
B 0 245 17550 379.67 222 216 45.7
B 5 172 15209 328.4 222 216 45.7
C 15 214 87681 1635.52 220 221 53.5
C 3 233 76715 1430.45 220 221 53.5
C 14 254 61590 1147.61 220 221 53.5
D 2 249 150146 2643.17 224 218 56.7
D 1 52 104345 1835.72 224 218 56.7
D 5 171 61486 1080.13 224 218 56.7

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