ASTROSAT CZTI

Data Quality Report

Orbit 24319

Creation date: 2024-06-27T19:04:43.258005
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_145T01_9000003594_24319cztM0_level2.evt modeM0/AS1A07_145T01_9000003594_24319cztM0_level2_quad_clean.evt
Size (bytes)518,742,72098,498,880
Size494.7 MB 93.9 MB
Events in quadrant A3,210,375636,460
Events in quadrant B3,309,509657,419
Events in quadrant C5,287,833620,039
Events in quadrant D3,454,368608,410

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136912
B0138882
C0205212
D0147262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6602200.302939%
B6602410.621024%
C66022824.271433%
D6602390.590730%

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 7862 6603 0 0 0.00% 0.00%
B 7862 6603 5 5 0.06% 0.08%
C 7862 6602 96 96 1.22% 1.45%
D 7862 6603 27 27 0.34% 0.41%

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 11102 61.9 830 815 166.2
A 13 254 10504 58.3 830 815 166.2
A 0 226 7189 38.35 830 815 166.2
B 0 219 36974 228.23 832 812 158.4
B 12 111 18564 112.04 832 812 158.4
B 0 230 16955 101.88 832 812 158.4
C 7 247 1576161 8580.06 789 793 183.6
C 2 16 493592 2683.97 789 793 183.6
C 14 238 127862 692.07 789 793 183.6
D 1 52 169730 876.05 799 778 192.9
D 12 218 127794 658.61 799 778 192.9
D 1 239 59237 303.12 799 778 192.9

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