ASTROSAT CZTI

Data Quality Report

Orbit 01373

Creation date: 2024-06-27T14:11:42.698827
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/AS1G04_014T02_9000000232_01373cztM0_level2.evt modeM0/AS1G04_014T02_9000000232_01373cztM0_level2_quad_clean.evt
Size (bytes)1,049,238,720102,326,400
Size1000.6 MB 97.6 MB
Events in quadrant A8,148,971661,719
Events in quadrant B8,249,661678,537
Events in quadrant C7,709,039664,983
Events in quadrant D7,243,580646,404

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0287303
B0290672
C0274202
D0260962

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6414540.841908%
B6414330.514500%
C6414270.420954%
D6414520.810727%

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 7619 6415 391 391 5.13% 6.10%
B 7619 6415 354 354 4.65% 5.52%
C 7619 6415 196 196 2.57% 3.06%
D 7619 6415 202 202 2.65% 3.15%

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 15 127 329638 708.6 1942 1958 462.4
A 4 32 192518 412.08 1942 1958 462.4
A 12 243 70186 147.54 1942 1958 462.4
B 8 4 221716 458.81 2056 2063 478.7
B 12 52 77458 157.49 2056 2063 478.7
B 8 219 48630 97.27 2056 2063 478.7
C 15 241 207403 390.99 1901 1972 525.4
C 7 159 21799 37.74 1901 1972 525.4
C 3 111 20686 35.62 1901 1972 525.4
D 9 53 177069 311.86 1828 1895 561.7
D 10 125 116056 203.24 1828 1895 561.7
D 13 73 75976 131.89 1828 1895 561.7

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