ASTROSAT CZTI

Data Quality Report

Orbit 06496

Creation date: 2024-06-27T15:07:56.235825
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/AS1G06_134T11_9000000870_06496cztM0_level2.evt modeM0/AS1G06_134T11_9000000870_06496cztM0_level2_quad_clean.evt
Size (bytes)327,430,08080,533,440
Size312.3 MB 76.8 MB
Events in quadrant A2,403,971519,762
Events in quadrant B2,313,670542,146
Events in quadrant C2,113,490535,244
Events in quadrant D2,755,841502,696

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106792
B0103271
C099361
D0115351

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A48212094.335200%
B4821541.120100%
C4821210.435594%
D4821901.866833%

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 5980 4821 13 13 0.22% 0.27%
B 5980 4821 16 16 0.27% 0.33%
C 5980 4821 0 0 0.00% 0.00%
D 5980 4821 39 39 0.65% 0.81%

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 15 236 247126 2215.04 547 536 111.3
A 8 15 38537 341.35 547 536 111.3
A 0 226 5400 43.69 547 536 111.3
B 0 219 39894 372.19 559 548 105.7
B 15 35 36885 343.73 559 548 105.7
B 4 172 22081 203.69 559 548 105.7
C 1 16 4922 34.95 539 541 125.4
C 13 61 4311 30.07 539 541 125.4
C 12 4 2538 15.93 539 541 125.4
D 8 195 403425 3102.9 534 518 129.8
D 2 33 153755 1180.12 534 518 129.8
D 2 152 74943 573.17 534 518 129.8

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