ASTROSAT CZTI

Data Quality Report

Orbit 22448

Creation date: 2024-06-27T18:41:03.927267
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/AS1A07_056T01_9000003330_22448cztM0_level2.evt modeM0/AS1A07_056T01_9000003330_22448cztM0_level2_quad_clean.evt
Size (bytes)466,168,320128,272,320
Size444.6 MB 122.3 MB
Events in quadrant A3,039,753871,047
Events in quadrant B3,944,308878,887
Events in quadrant C3,187,680862,925
Events in quadrant D3,526,330840,754

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131271
B0158951
C0134811
D0147321

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6190280.452342%
B61892003.231540%
C61891081.745032%
D6189400.646308%

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 7420 6191 0 0 0.00% 0.00%
B 7419 6190 128 128 1.73% 2.07%
C 7419 6189 5 5 0.07% 0.08%
D 7419 6189 7 7 0.09% 0.11%

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 3 1 37301 236.42 774 758 154.6
A 15 174 11010 66.33 774 758 154.6
A 13 254 10113 60.52 774 758 154.6
B 10 245 874293 6130.04 765 747 142.5
B 0 190 25409 173.06 765 747 142.5
B 12 111 16394 109.8 765 747 142.5
C 14 238 122085 688.66 759 764 176.2
C 10 22 56320 315.35 759 764 176.2
C 3 9 22762 124.87 759 764 176.2
D 1 52 374713 2037.39 766 745 183.6
D 7 223 144252 781.83 766 745 183.6
D 13 172 43228 231.45 766 745 183.6

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