ASTROSAT CZTI

Data Quality Report

Orbit 44049

Creation date: 2024-06-27T22:58:44.735509
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/AS1A13_025T02_9000005938_44049cztM0_level2.fits modeM0/AS1A13_025T02_9000005938_44049cztM0_level2_quad_clean.evt
Size (bytes)1,194,989,760300,268,800
Size1.1 GB 286.4 MB
Events in quadrant A12,253,3731,990,263
Events in quadrant B8,861,8572,061,818
Events in quadrant C10,265,5041,950,354
Events in quadrant D11,388,4511,784,242

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0494504
B0395644
C0439584
D0472304

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03880
B03880
C03880
D03880

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A189285542.926881%
B189294142.187120%
C189295262.778805%
D189295622.968989%

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 21593 18932 91 91 0.42% 0.48%
B 21594 18933 8 8 0.04% 0.04%
C 21594 18933 195 195 0.90% 1.03%
D 21594 18933 213 213 0.99% 1.13%

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 3175763 7189.13 2145 2096 441.5
A 15 222 349424 786.78 2145 2096 441.5
A 15 223 214927 482.11 2145 2096 441.5
B 0 213 258455 602.71 2149 2081 425.4
B 0 200 57709 130.78 2149 2081 425.4
B 12 111 55780 126.24 2149 2081 425.4
C 14 254 1589648 3198.2 2100 2111 496.4
C 3 233 238895 477.02 2100 2111 496.4
C 12 249 161056 320.21 2100 2111 496.4
D 1 52 1584304 3011.04 2097 2032 525.5
D 5 222 1078373 2048.26 2097 2032 525.5
D 5 235 155634 292.3 2097 2032 525.5

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