ASTROSAT CZTI

Data Quality Report

Orbit 17273

Creation date: 2024-06-27T17:34:23.067981
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/AS1T03_059T01_9000002554_17273cztM0_level2.evt modeM0/AS1T03_059T01_9000002554_17273cztM0_level2_quad_clean.evt
Size (bytes)506,808,00092,401,920
Size483.3 MB 88.1 MB
Events in quadrant A3,853,381580,465
Events in quadrant B3,450,628591,784
Events in quadrant C3,421,252557,328
Events in quadrant D4,120,186552,894

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01480
B01480
C01480
D01480

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165302
B0152502
C0152402
D0174162

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74142253.034799%
B74141321.780415%
C74131672.252799%
D74131682.266289%

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 7684 7415 88 88 1.15% 1.19%
B 7684 7415 0 0 0.00% 0.00%
C 7683 7414 0 0 0.00% 0.00%
D 7683 7414 71 71 0.92% 0.96%

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 14 235 466517 2625.17 875 854 177.4
A 0 8 13503 71.31 875 854 177.4
A 0 23 8317 42.07 875 854 177.4
B 12 111 21245 119.05 881 856 171.3
B 11 111 18351 102.15 881 856 171.3
B 14 111 16085 88.92 881 856 171.3
C 14 238 128526 638.77 843 846 199.9
C 3 233 6444 28.01 843 846 199.9
C 13 61 5879 25.18 843 846 199.9
D 11 176 529447 2533.63 854 828 208.6
D 10 70 136008 647.91 854 828 208.6
D 13 189 101130 480.74 854 828 208.6

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