ASTROSAT CZTI

Data Quality Report

Orbit 34099

Creation date: 2024-06-27T20:56:31.452886
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_208T01_9000004870_34099cztM0_level2.evt modeM0/AS1A05_208T01_9000004870_34099cztM0_level2_quad_clean.evt
Size (bytes)774,475,200118,730,880
Size738.6 MB 113.2 MB
Events in quadrant A3,569,474794,515
Events in quadrant B5,540,018790,275
Events in quadrant C5,292,492781,203
Events in quadrant D8,533,226693,968

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0330

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156542
B0214801
C0206021
D0306321

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A770560.077872%
B77055737.436729%
C77053464.490591%
D770595412.381570%

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 10931 7707 0 0 0.00% 0.00%
B 10931 7707 373 373 3.41% 4.84%
C 10931 7707 280 280 2.56% 3.63%
D 10931 7707 1006 1006 9.20% 13.05%

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 21551 113.8 915 898 181.5
A 13 254 14299 73.84 915 898 181.5
A 13 6 11268 57.14 915 898 181.5
B 5 172 1772696 10379.44 884 864 170.7
B 4 232 79223 459.03 884 864 170.7
B 0 245 56474 325.76 884 864 170.7
C 0 10 1130186 5533.22 878 886 204.1
C 15 214 324374 1584.99 878 886 204.1
C 14 254 215199 1050.07 878 886 204.1
D 7 223 2179500 10468.7 848 827 208.1
D 8 195 1373266 6594.68 848 827 208.1
D 13 249 809434 3885.42 848 827 208.1

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