ASTROSAT CZTI

Data Quality Report

Orbit 37013

Creation date: 2024-06-27T21:34:16.609082
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_015T04_9000005262_37013cztM0_level2.evt modeM0/AS1C07_015T04_9000005262_37013cztM0_level2_quad_clean.evt
Size (bytes)497,577,60051,480,000
Size474.5 MB 49.1 MB
Events in quadrant A3,043,700306,075
Events in quadrant B3,839,422307,832
Events in quadrant C3,600,417300,646
Events in quadrant D4,236,002281,951

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124143
B0148062
C0140782
D0162352

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5162190.368074%
B51622785.385509%
C51621322.557148%
D51622314.475010%

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 7194 5163 6 6 0.08% 0.12%
B 7194 5163 177 177 2.46% 3.43%
C 7194 5163 115 115 1.60% 2.23%
D 7194 5163 185 185 2.57% 3.58%

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 10 83 240361 1741.63 691 679 137.6
A 14 1 111745 807.05 691 679 137.6
A 13 6 19639 137.77 691 679 137.6
B 5 184 772945 6136.45 671 656 125.9
B 0 213 149523 1182.87 671 656 125.9
B 5 172 114137 901.7 671 656 125.9
C 1 23 468280 3072.02 663 671 152.2
C 15 214 219637 1438.53 663 671 152.2
C 0 242 133344 871.61 663 671 152.2
D 1 52 601877 3776.68 663 647 159.2
D 2 153 381430 2391.92 663 647 159.2
D 12 235 257157 1611.29 663 647 159.2

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