ASTROSAT CZTI

Data Quality Report

Orbit 34092

Creation date: 2024-06-27T20:56:27.705638
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/AS1A05_208T01_9000004870_34092cztM0_level2.evt modeM0/AS1A05_208T01_9000004870_34092cztM0_level2_quad_clean.evt
Size (bytes)438,053,76055,131,840
Size417.8 MB 52.6 MB
Events in quadrant A2,349,028338,322
Events in quadrant B2,990,106342,023
Events in quadrant C3,402,137332,764
Events in quadrant D4,189,333308,585

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01020
B01020
C01020
D01020

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099462
B0119981
C0132371
D0157571

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A494940.080824%
B49491112.242877%
C4949951.919580%
D49491963.960396%

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 6832 4950 0 0 0.00% 0.00%
B 6832 4950 80 80 1.17% 1.62%
C 6832 4950 91 91 1.33% 1.84%
D 6832 4950 195 195 2.85% 3.94%

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 6 14474 114.4 601 589 121.4
A 10 83 12348 96.89 601 589 121.4
A 13 254 9875 76.51 601 589 121.4
B 5 172 400230 3504.38 589 573 114.0
B 5 31 85167 741.76 589 573 114.0
B 0 245 35561 306.79 589 573 114.0
C 0 10 775512 5746.75 579 584 134.8
C 15 214 215401 1593.05 579 584 134.8
C 0 207 53849 395.01 579 584 134.8
D 8 195 999056 7045.84 575 559 141.7
D 2 250 319836 2252.96 575 559 141.7
D 10 118 183632 1291.84 575 559 141.7

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