ASTROSAT CZTI

Data Quality Report

Orbit 44312

Creation date: 2024-06-27T23:01:57.968628
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/AS1A13_004T13_9000005988_44312cztM0_level2.fits modeM0/AS1A13_004T13_9000005988_44312cztM0_level2_quad_clean.evt
Size (bytes)498,147,840111,473,280
Size475.1 MB 106.3 MB
Events in quadrant A6,166,918730,412
Events in quadrant B3,831,774768,100
Events in quadrant C3,235,822740,918
Events in quadrant D4,684,831668,338

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235552
B0157182
C0142842
D0183593

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67084206.261181%
B67082173.234943%
C67081081.610018%
D67072994.458029%

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 8678 6708 133 133 1.53% 1.98%
B 8678 6709 46 46 0.53% 0.69%
C 8678 6709 22 22 0.25% 0.33%
D 8677 6708 172 172 1.98% 2.56%

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 1628651 10067.9 781 766 161.7
A 15 223 1477442 9132.73 781 766 161.7
A 10 248 15028 88.21 781 766 161.7
B 5 255 195384 1244.64 783 758 156.4
B 0 190 172693 1099.53 783 758 156.4
B 5 235 119966 762.34 783 758 156.4
C 14 254 139720 770.72 770 774 180.3
C 1 16 28351 152.97 770 774 180.3
C 1 3 25207 135.53 770 774 180.3
D 13 249 751721 3914.59 765 741 191.8
D 1 20 412112 2144.33 765 741 191.8
D 5 222 89402 462.16 765 741 191.8

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