ASTROSAT CZTI

Data Quality Report

Orbit 02514

Creation date: 2024-06-27T14:18:55.204840
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/AS1T01_103T01_9000000374_02514cztM0_level2.evt modeM0/AS1T01_103T01_9000000374_02514cztM0_level2_quad_clean.evt
Size (bytes)403,505,28077,371,200
Size384.8 MB 73.8 MB
Events in quadrant A2,792,554472,102
Events in quadrant B2,965,898476,125
Events in quadrant C2,890,459475,214
Events in quadrant D3,124,239461,498

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132793
B0135402
C0134772
D0142602

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6564150.228519%
B6564190.289458%
C6564140.213285%
D6564310.472273%

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 7614 6565 1 1 0.01% 0.02%
B 7614 6565 0 0 0.00% 0.00%
C 7614 6565 1 1 0.01% 0.02%
D 7614 6565 10 10 0.13% 0.15%

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 12 194 7845 48.02 724 705 148.7
A 0 226 7784 47.61 724 705 148.7
A 13 9 4832 27.76 724 705 148.7
B 7 205 93830 658.65 738 719 141.4
B 5 6 14478 97.33 738 719 141.4
B 12 111 11633 77.2 738 719 141.4
C 10 65 48811 286.86 713 714 167.7
C 2 53 26804 155.6 713 714 167.7
C 4 248 9517 52.5 713 714 167.7
D 11 131 301387 1815.68 699 682 165.6
D 11 130 76431 457.38 699 682 165.6
D 2 184 50951 303.53 699 682 165.6

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