ASTROSAT CZTI

Data Quality Report

Orbit 44402

Creation date: 2024-06-27T23:03:09.893310
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_008T08_9000005998_44402cztM0_level2.fits modeM0/AS1A13_008T08_9000005998_44402cztM0_level2_quad_clean.evt
Size (bytes)463,965,120104,532,480
Size442.5 MB 99.7 MB
Events in quadrant A4,742,086708,029
Events in quadrant B3,283,365733,216
Events in quadrant C3,273,378697,627
Events in quadrant D5,397,271596,292

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0191121
B0137051
C0140221
D0202431

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61591993.231044%
B61601191.931818%
C6160841.363636%
D616066810.844156%

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 7294 6160 22 22 0.30% 0.36%
B 7295 6160 21 21 0.29% 0.34%
C 7295 6161 26 26 0.36% 0.42%
D 7295 6160 571 571 7.83% 9.27%

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 1692582 11123.21 730 716 152.1
A 13 248 157732 1032.3 730 716 152.1
A 0 243 46944 303.93 730 716 152.1
B 5 235 139821 962.38 728 708 144.6
B 0 155 72178 494.43 728 708 144.6
B 0 183 43456 295.73 728 708 144.6
C 14 254 474735 2857.48 702 706 165.9
C 3 233 20275 117.96 702 706 165.9
C 9 54 15324 88.12 702 706 165.9
D 4 221 738968 4318.28 684 665 171.0
D 6 239 479413 2800.16 684 665 171.0
D 2 249 373538 2180.91 684 665 171.0

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