ASTROSAT CZTI

Data Quality Report

Orbit 28630

Creation date: 2024-06-27T19:54:12.126916
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_045T06_9000004108_28630cztM0_level2.evt modeM0/AS1A10_045T06_9000004108_28630cztM0_level2_quad_clean.evt
Size (bytes)525,732,48099,472,320
Size501.4 MB 94.9 MB
Events in quadrant A3,366,617663,265
Events in quadrant B4,003,540627,397
Events in quadrant C3,417,017655,272
Events in quadrant D4,707,156626,548

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135682
B0155512
C0137662
D0181282

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6295831.318507%
B62953906.195393%
C62951251.985703%
D62963044.828463%

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 7515 6294 0 0 0.00% 0.00%
B 7516 6295 264 264 3.51% 4.19%
C 7516 6295 0 0 0.00% 0.00%
D 7517 6296 247 247 3.29% 3.92%

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 12 96 17418 96.42 865 849 171.8
A 13 254 11276 60.68 865 849 171.8
A 15 47 8151 42.49 865 849 171.8
B 10 245 799039 5225.29 813 793 152.8
B 12 111 18213 114.03 813 793 152.8
B 11 111 16684 104.02 813 793 152.8
C 14 238 142371 732.17 834 841 193.3
C 14 254 12075 58.11 834 841 193.3
C 7 247 11104 53.09 834 841 193.3
D 1 52 1151376 5844.66 833 814 196.9
D 8 195 273454 1384.96 833 814 196.9
D 2 250 72483 364.07 833 814 196.9

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