ASTROSAT CZTI

Data Quality Report

Orbit 29080

Creation date: 2024-06-27T20:00:05.964223
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_115T01_9000004178_29080cztM0_level2.evt modeM0/AS1A10_115T01_9000004178_29080cztM0_level2_quad_clean.evt
Size (bytes)536,561,280106,041,600
Size511.7 MB 101.1 MB
Events in quadrant A3,471,784711,019
Events in quadrant B3,549,366729,092
Events in quadrant C3,417,097688,956
Events in quadrant D5,381,485639,515

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142842
B0144892
C0139832
D0203853

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63491031.622303%
B63501282.015748%
C63501181.858268%
D63493765.922192%

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 7669 6349 2 2 0.03% 0.03%
B 7670 6350 6 6 0.08% 0.09%
C 7670 6350 0 0 0.00% 0.00%
D 7669 6349 296 296 3.86% 4.66%

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 6 16 38085 212.45 885 870 175.2
A 0 13 13900 74.39 885 870 175.2
A 13 254 11817 62.49 885 870 175.2
B 5 255 41815 248.64 878 860 164.7
B 0 183 33777 199.84 878 860 164.7
B 12 111 19060 110.49 878 860 164.7
C 14 238 135317 692.22 834 842 194.3
C 2 114 15527 75.59 834 842 194.3
C 2 16 15059 73.18 834 842 194.3
D 1 52 1186354 6065.97 825 803 195.4
D 8 195 927361 4740.81 825 803 195.4
D 12 233 85087 431.25 825 803 195.4

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