ASTROSAT CZTI

Data Quality Report

Orbit 28661

Creation date: 2024-06-27T19:54:36.629563
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_073T08_9000004112_28661cztM0_level2.evt modeM0/AS1A10_073T08_9000004112_28661cztM0_level2_quad_clean.evt
Size (bytes)556,588,80097,807,680
Size530.8 MB 93.3 MB
Events in quadrant A3,731,718655,748
Events in quadrant B4,833,096659,725
Events in quadrant C3,533,700612,371
Events in quadrant D4,332,652596,349

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150462
B0182252
C0142522
D0172612

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62801382.197452%
B628063410.095541%
C62802193.487261%
D62801372.181529%

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 7570 6281 13 13 0.17% 0.21%
B 7570 6281 316 316 4.17% 5.03%
C 7570 6281 0 0 0.00% 0.00%
D 7570 6281 49 49 0.65% 0.78%

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 15 174 150212 828.96 920 908 180.1
A 12 96 29473 158.6 920 908 180.1
A 13 254 11819 60.58 920 908 180.1
B 10 245 1351440 8139.66 885 869 165.9
B 12 111 19309 111.13 885 869 165.9
B 11 111 17501 100.24 885 869 165.9
C 14 238 165370 834.18 848 855 197.2
C 14 254 38780 192.3 848 855 197.2
C 0 10 21218 103.25 848 855 197.2
D 1 52 773999 3795.39 865 846 203.7
D 8 195 219008 1070.95 865 846 203.7
D 2 250 35002 167.67 865 846 203.7

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