ASTROSAT CZTI

Data Quality Report

Orbit 36595

Creation date: 2024-06-27T21:28:54.947912
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/AS1A11_097T24_9000005224_36595cztM0_level2.evt modeM0/AS1A11_097T24_9000005224_36595cztM0_level2_quad_clean.evt
Size (bytes)406,203,84046,808,640
Size387.4 MB 44.6 MB
Events in quadrant A2,788,201276,061
Events in quadrant B2,682,130277,400
Events in quadrant C3,281,682255,566
Events in quadrant D3,207,370254,374

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110853
B0107452
C0125122
D0125842

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5036130.258141%
B5036100.198570%
C50361943.852264%
D5036991.965846%

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 7189 5037 0 0 0.00% 0.00%
B 7189 5037 0 0 0.00% 0.00%
C 7189 5037 147 147 2.04% 2.92%
D 7189 5037 85 85 1.18% 1.69%

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 194205 1489.1 649 639 130.0
A 15 223 52326 397.63 649 639 130.0
A 9 143 12602 92.03 649 639 130.0
B 0 213 52485 430.4 635 622 120.5
B 4 232 28558 231.84 635 622 120.5
B 4 171 27297 221.37 635 622 120.5
C 0 10 631929 4541.4 601 607 139.0
C 15 214 214016 1535.15 601 607 139.0
C 14 254 66784 476.04 601 607 139.0
D 2 153 209071 1393.17 620 603 149.6
D 2 250 199216 1327.31 620 603 149.6
D 2 137 106358 706.75 620 603 149.6

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