ASTROSAT CZTI

Data Quality Report

Orbit 43152

Creation date: 2024-06-27T22:48:40.592742
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/AS1C07_001T10_9000005856_43152cztM0_level2.fits modeM0/AS1C07_001T10_9000005856_43152cztM0_level2_quad_clean.evt
Size (bytes)345,127,68091,690,560
Size329.1 MB 87.4 MB
Events in quadrant A3,786,537603,801
Events in quadrant B2,501,741630,416
Events in quadrant C3,198,912597,654
Events in quadrant D2,845,906547,108

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149782
B0115782
C0132332
D0128552

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A56801422.500000%
B568160.105615%
C5681200.352051%
D56811352.376342%

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 9026 5682 96 96 1.06% 1.69%
B 9027 5683 0 0 0.00% 0.00%
C 9027 5683 8 8 0.09% 0.14%
D 9027 5683 97 97 1.07% 1.71%

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 605942 4917.08 598 585 123.1
A 15 222 578238 4692.05 598 585 123.1
A 15 237 253872 2057.35 598 585 123.1
B 0 186 58606 499.36 601 583 116.2
B 0 229 44821 380.72 601 583 116.2
B 0 189 16312 135.37 601 583 116.2
C 14 254 664421 4892.0 583 585 135.7
C 15 214 255289 1876.99 583 585 135.7
C 13 61 3864 24.16 583 585 135.7
D 1 52 227689 1614.83 580 564 140.6
D 13 249 183295 1299.2 580 564 140.6
D 10 118 175129 1241.14 580 564 140.6

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