ASTROSAT CZTI

Data Quality Report

Orbit 05513

Creation date: 2024-06-27T14:56:07.263089
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/AS1A02_162T01_9000000704_05513cztM0_level2.evt modeM0/AS1A02_162T01_9000000704_05513cztM0_level2_quad_clean.evt
Size (bytes)581,898,24065,283,840
Size554.9 MB 62.3 MB
Events in quadrant A2,811,796423,498
Events in quadrant B8,487,375323,401
Events in quadrant C2,669,452421,688
Events in quadrant D3,262,290403,089

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123202
B0290561
C0119841
D0136231

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57781172.024922%
B5778208035.998615%
C5778480.830737%
D57781151.990308%

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 6983 5779 34 34 0.49% 0.59%
B 6983 5779 1845 1845 26.42% 31.93%
C 6983 5779 4 4 0.06% 0.07%
D 6983 5779 60 60 0.86% 1.04%

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 0 50 147034 1039.78 686 672 140.8
A 3 1 10891 72.6 686 672 140.8
A 13 14 6958 44.66 686 672 140.8
B 15 255 5414036 46260.09 612 600 117.0
B 15 204 574433 4903.64 612 600 117.0
B 11 51 31947 267.87 612 600 117.0
C 1 16 75420 490.15 655 657 152.5
C 9 247 19175 121.4 655 657 152.5
C 12 4 13209 82.29 655 657 152.5
D 11 192 361924 2241.07 656 636 161.2
D 2 152 184444 1140.16 656 636 161.2
D 8 195 99052 610.48 656 636 161.2

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