ASTROSAT CZTI

Data Quality Report

Orbit 32975

Creation date: 2024-06-27T20:44:07.611688
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_003T01_9000004754_32975cztM0_level2.evt modeM0/AS1C07_003T01_9000004754_32975cztM0_level2_quad_clean.evt
Size (bytes)447,888,96067,726,080
Size427.1 MB 64.6 MB
Events in quadrant A2,392,487440,639
Events in quadrant B3,056,845449,312
Events in quadrant C2,699,453421,419
Events in quadrant D5,078,438390,864

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0330

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100693
B0120442
C0109842
D0186062

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A496690.181232%
B49661673.362867%
C4966931.872735%
D49664098.236005%

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 7118 4967 0 0 0.00% 0.00%
B 7118 4967 107 107 1.50% 2.15%
C 7118 4967 71 71 1.00% 1.43%
D 7118 4967 432 432 6.07% 8.70%

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 13 254 8879 67.28 615 606 123.0
A 9 143 7320 54.6 615 606 123.0
A 3 137 5412 39.09 615 606 123.0
B 5 172 482565 4115.05 616 602 117.1
B 0 197 84205 713.81 616 602 117.1
B 5 200 53082 448.08 616 602 117.1
C 0 10 252044 1832.25 596 603 137.2
C 14 67 35128 251.58 596 603 137.2
C 9 54 24048 170.84 596 603 137.2
D 7 80 1099860 7296.64 574 563 150.7
D 8 195 942096 6249.47 574 563 150.7
D 12 227 316948 2100.02 574 563 150.7

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