ASTROSAT CZTI

Data Quality Report

Orbit 13053

Creation date: 2024-06-27T16:35:48.796396
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/AS1G08_045T01_9000001920_13053cztM0_level2.evt modeM0/AS1G08_045T01_9000001920_13053cztM0_level2_quad_clean.evt
Size (bytes)611,343,36099,135,360
Size583.0 MB 94.5 MB
Events in quadrant A3,354,284669,114
Events in quadrant B6,502,132597,227
Events in quadrant C3,079,117679,822
Events in quadrant D5,143,505607,128

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0141403
B0237232
C0132952
D0195752

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6425350.544747%
B6425138821.603113%
C6425200.311284%
D64255057.859922%

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 7596 6427 3 3 0.04% 0.05%
B 7596 6427 879 879 11.57% 13.68%
C 7596 6427 5 5 0.07% 0.08%
D 7596 6427 435 435 5.73% 6.77%

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 8 15 156708 980.29 788 772 159.1
A 12 189 98256 612.83 788 772 159.1
A 1 162 19006 114.63 788 772 159.1
B 4 239 2088207 16280.77 683 668 128.2
B 0 85 1460442 11384.82 683 668 128.2
B 3 64 145579 1130.16 683 668 128.2
C 14 234 37640 204.11 777 782 180.6
C 12 4 6884 33.79 777 782 180.6
C 13 61 5737 27.44 777 782 180.6
D 1 52 1142651 6345.74 744 724 180.0
D 14 34 992453 5511.08 744 724 180.0
D 8 195 139985 773.88 744 724 180.0

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