ASTROSAT CZTI

Data Quality Report

Orbit 28052

Creation date: 2024-06-27T19:47:30.455216
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/AS1A10_045T03_9000004052_28052cztM0_level2.evt modeM0/AS1A10_045T03_9000004052_28052cztM0_level2_quad_clean.evt
Size (bytes)457,678,08089,962,560
Size436.5 MB 85.8 MB
Events in quadrant A2,997,676603,691
Events in quadrant B2,887,485607,752
Events in quadrant C3,182,474569,237
Events in quadrant D4,416,027554,832

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120060
B0116710
C0127480
D0170160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5563420.754988%
B5564450.808771%
C5564671.204170%
D55641853.324946%

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 6928 5564 0 0 0.00% 0.00%
B 6929 5564 2 2 0.03% 0.04%
C 6929 5564 7 7 0.10% 0.13%
D 6929 5565 150 150 2.16% 2.70%

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 0 13 103595 697.85 749 736 147.4
A 13 254 9041 56.35 749 736 147.4
A 0 226 6615 39.89 749 736 147.4
B 12 111 15820 111.26 728 710 135.8
B 11 111 14627 102.48 728 710 135.8
B 14 111 13552 94.56 728 710 135.8
C 3 233 330146 2043.11 700 705 161.2
C 14 238 117461 724.09 700 705 161.2
C 13 61 4888 25.94 700 705 161.2
D 8 195 810647 4888.14 710 692 165.7
D 2 250 484103 2917.42 710 692 165.7
D 1 52 378693 2281.26 710 692 165.7

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