ASTROSAT CZTI

Data Quality Report

Orbit 29343

Creation date: 2024-06-27T20:03:01.788083
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/AS1T03_279T01_9000004218_29343cztM0_level2.evt modeM0/AS1T03_279T01_9000004218_29343cztM0_level2_quad_clean.evt
Size (bytes)714,185,28069,788,160
Size681.1 MB 66.6 MB
Events in quadrant A3,202,304461,910
Events in quadrant B3,324,424464,145
Events in quadrant C3,420,677428,002
Events in quadrant D11,250,881314,123

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132271
B0135831
C0138681
D0378051

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6366901.413761%
B63671211.900424%
C63674306.753573%
D6367308348.421549%

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 7302 6368 0 0 0.00% 0.00%
B 7303 6369 6 6 0.08% 0.09%
C 7303 6369 0 0 0.00% 0.00%
D 7303 6369 2460 2460 33.68% 38.62%

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 15 174 27051 162.15 815 798 161.9
A 0 13 20837 123.77 815 798 161.9
A 13 254 13668 79.49 815 798 161.9
B 10 245 106021 698.56 803 785 150.6
B 0 244 19602 124.91 803 785 150.6
B 12 111 17534 111.18 803 785 150.6
C 14 238 209838 1184.35 760 767 176.5
C 14 254 128654 724.45 760 767 176.5
C 3 233 73164 410.11 760 767 176.5
D 12 33 4025957 26809.9 632 617 150.1
D 1 52 2795882 18617.26 632 617 150.1
D 7 80 901159 5997.86 632 617 150.1

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