ASTROSAT CZTI

Data Quality Report

Orbit 23324

Creation date: 2024-06-27T18:52:51.392882
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/AS1A07_148T05_9000003446_23324cztM0_level2.evt modeM0/AS1A07_148T05_9000003446_23324cztM0_level2_quad_clean.evt
Size (bytes)572,097,600105,531,840
Size545.6 MB 100.6 MB
Events in quadrant A3,917,881668,180
Events in quadrant B4,062,224678,816
Events in quadrant C4,015,767651,659
Events in quadrant D4,778,020632,109

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170902
B0174442
C0172002
D0198572

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01680
C01680
D01680

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81291051.291672%
B81301742.140221%
C81302022.484625%
D81303494.292743%

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 8744 8131 0 0 0.00% 0.00%
B 8745 8132 2 2 0.02% 0.02%
C 8745 8132 0 0 0.00% 0.00%
D 8744 8131 259 259 2.96% 3.19%

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 12538 56.15 1014 990 205.7
A 3 137 9276 40.29 1014 990 205.7
A 0 226 8489 36.46 1014 990 205.7
B 0 190 60168 302.7 1010 985 195.5
B 12 111 24614 120.85 1010 985 195.5
B 11 111 21397 104.4 1010 985 195.5
C 14 238 152844 657.93 974 982 230.8
C 7 247 27081 113.07 974 982 230.8
C 0 207 15874 64.52 974 982 230.8
D 13 104 642643 2643.98 977 949 242.7
D 1 52 267565 1098.54 977 949 242.7
D 12 227 76974 313.25 977 949 242.7

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