ASTROSAT CZTI

Data Quality Report

Orbit 19037

Creation date: 2024-06-27T17:58:23.208992
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_046T01_9000002834_19037cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19037cztM0_level2_quad_clean.evt
Size (bytes)737,089,92087,589,440
Size702.9 MB 83.5 MB
Events in quadrant A3,290,269596,312
Events in quadrant B3,486,682610,230
Events in quadrant C4,027,888577,815
Events in quadrant D11,046,378381,601

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142271
B0146721
C0161961
D0375875

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69711141.635346%
B69711422.037010%
C69723064.388985%
D6971302043.322335%

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 7531 6972 0 0 0.00% 0.00%
B 7531 6972 9 9 0.12% 0.13%
C 7532 6973 24 24 0.32% 0.34%
D 7531 6972 2498 2498 33.17% 35.83%

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 13 254 8943 47.02 853 832 172.5
A 0 226 7478 38.53 853 832 172.5
A 3 137 6559 33.2 853 832 172.5
B 3 112 62078 375.77 850 828 163.0
B 10 245 44004 264.89 850 828 163.0
B 7 220 38066 228.46 850 828 163.0
C 3 233 679394 3533.71 814 821 192.0
C 14 238 125997 651.86 814 821 192.0
C 9 15 49685 254.46 814 821 192.0
D 7 238 8560841 54448.98 647 630 157.2
D 2 234 24180 149.79 647 630 157.2
D 10 50 10258 61.24 647 630 157.2

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