ASTROSAT CZTI

Data Quality Report

Orbit 32700

Creation date: 2024-06-27T20:40:58.694289
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/AS1T04_063T01_9000004724_32700cztM0_level2.evt modeM0/AS1T04_063T01_9000004724_32700cztM0_level2_quad_clean.evt
Size (bytes)531,158,40082,681,920
Size506.6 MB 78.9 MB
Events in quadrant A3,332,819560,450
Events in quadrant B3,177,566573,097
Events in quadrant C3,171,691540,345
Events in quadrant D6,067,786481,209

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0350
B0350
C0350
D0360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128413
B0127612
C0122932
D0216542

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4969991.992353%
B4969450.905615%
C49691543.099215%
D496989217.951298%

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 7093 4970 52 52 0.73% 1.05%
B 7093 4970 20 20 0.28% 0.40%
C 7093 4970 116 116 1.64% 2.33%
D 7093 4970 812 812 11.45% 16.34%

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 15 249 680665 5153.59 666 656 131.9
A 0 159 24015 177.03 666 656 131.9
A 13 6 15304 111.01 666 656 131.9
B 0 219 253579 2027.23 669 657 124.8
B 5 172 67345 534.52 669 657 124.8
B 0 230 63830 506.35 669 657 124.8
C 0 10 351220 2445.41 623 630 143.4
C 6 247 172083 1195.91 623 630 143.4
C 0 207 72169 498.99 623 630 143.4
D 7 80 1183880 8342.61 599 588 141.8
D 2 249 689244 4855.26 599 588 141.8
D 12 33 392700 2764.52 599 588 141.8

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