ASTROSAT CZTI

Data Quality Report

Orbit 02972

Creation date: 2024-06-27T14:22:55.463995
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/AS1G05_238T04_9000000416_02972cztM0_level2.evt modeM0/AS1G05_238T04_9000000416_02972cztM0_level2_quad_clean.evt
Size (bytes)342,613,44051,586,560
Size326.7 MB 49.2 MB
Events in quadrant A2,776,873299,059
Events in quadrant B2,252,312301,407
Events in quadrant C2,080,403308,979
Events in quadrant D2,924,289299,968

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0117753
B0105472
C0101952
D0122362

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5025440.875622%
B5025210.417910%
C502550.099502%
D5025260.517413%

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 7181 5026 32 32 0.45% 0.64%
B 7181 5026 11 11 0.15% 0.22%
C 7181 5026 2 2 0.03% 0.04%
D 7181 5026 31 31 0.43% 0.62%

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 9 571004 5479.84 504 494 104.1
A 8 15 95552 913.05 504 494 104.1
A 14 63 65607 625.42 504 494 104.1
B 14 50 85362 834.57 521 508 101.7
B 0 219 69111 674.74 521 508 101.7
B 2 249 52888 515.18 521 508 101.7
C 6 80 32542 269.6 504 505 118.8
C 8 162 24895 205.25 504 505 118.8
C 15 208 11397 91.66 504 505 118.8
D 13 114 430655 3649.92 494 482 117.9
D 2 209 333147 2822.59 494 482 117.9
D 13 239 55802 469.38 494 482 117.9

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