ASTROSAT CZTI

Data Quality Report

Orbit 11625

Creation date: 2024-06-27T16:16:04.396588
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/AS1A04_198T01_9000001708_11625cztM0_level2.evt modeM0/AS1A04_198T01_9000001708_11625cztM0_level2_quad_clean.evt
Size (bytes)592,781,76088,263,360
Size565.3 MB 84.2 MB
Events in quadrant A5,672,859533,719
Events in quadrant B4,445,322552,367
Events in quadrant C3,436,971554,225
Events in quadrant D3,911,774533,736

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0216593
B0178142
C0151362
D0165152

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A717080811.269177%
B71705587.782427%
C71702493.472803%
D71703464.825662%

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 8951 7173 244 244 2.73% 3.40%
B 8951 7173 136 136 1.52% 1.90%
C 8951 7173 0 0 0.00% 0.00%
D 8951 7173 47 47 0.53% 0.66%

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 8 5 2032466 11485.34 872 853 176.9
A 1 162 108511 608.62 872 853 176.9
A 1 178 59064 329.08 872 853 176.9
B 4 239 855107 4996.1 889 865 171.0
B 11 51 94491 547.58 889 865 171.0
B 15 204 26542 150.17 889 865 171.0
C 13 61 6477 27.5 880 885 203.3
C 14 234 3464 12.68 880 885 203.3
C 3 202 2077 5.86 880 885 203.3
D 10 199 114732 541.05 878 852 210.5
D 13 172 97710 460.17 878 852 210.5
D 1 52 74178 348.37 878 852 210.5

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