ASTROSAT CZTI

Data Quality Report

Orbit 00133

Creation date: 2024-06-27T13:56:49.480889
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/AS1P01_003T01_9000000002_00133cztM0_level2.evt modeM0/AS1P01_003T01_9000000002_00133cztM0_level2_quad_clean.evt
Size (bytes)937,745,28075,268,800
Size894.3 MB 71.8 MB
Events in quadrant A6,844,432465,298
Events in quadrant B7,327,729476,655
Events in quadrant C6,202,074472,560
Events in quadrant D7,638,553457,366

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0244513
B0259192
C0225892
D0268322

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A582340.068693%
B5823510.875837%
C582330.051520%
D5823871.494075%

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 7415 5825 141 141 1.90% 2.42%
B 7415 5825 278 278 3.75% 4.77%
C 7415 5825 55 55 0.74% 0.94%
D 7415 5825 518 518 6.99% 8.89%

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 51456 173.14 1735 1699 287.4
A 15 106 18504 58.48 1735 1699 287.4
A 14 187 13807 42.13 1735 1699 287.4
B 0 235 215842 562.35 1718 1721 380.8
B 8 236 121410 314.34 1718 1721 380.8
B 5 216 104861 270.88 1718 1721 380.8
C 2 192 11261 21.89 1561 1615 440.6
C 0 186 11070 21.46 1561 1615 440.6
C 8 31 9050 16.88 1561 1615 440.6
D 10 244 419645 983.83 1625 1635 424.9
D 1 55 127246 295.64 1625 1635 424.9
D 12 141 102643 237.73 1625 1635 424.9

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