ASTROSAT CZTI

Data Quality Report

Orbit 33537

Creation date: 2024-06-27T20:49:53.252944
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/AS1A11_060T01_9000004808_33537cztM0_level2.evt modeM0/AS1A11_060T01_9000004808_33537cztM0_level2_quad_clean.evt
Size (bytes)452,586,24071,156,160
Size431.6 MB 67.9 MB
Events in quadrant A2,528,576461,184
Events in quadrant B3,112,723463,132
Events in quadrant C3,126,326441,168
Events in quadrant D4,582,175420,695

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107053
B0124222
C0123552
D0173002

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A525760.114134%
B52571502.853338%
C5257971.845159%
D52571222.320715%

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 7169 5258 1 1 0.01% 0.02%
B 7169 5258 116 116 1.62% 2.21%
C 7169 5258 91 91 1.27% 1.73%
D 7169 5258 102 102 1.42% 1.94%

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 15 169 22812 171.74 646 634 129.1
A 13 254 8839 63.54 646 634 129.1
A 3 137 6274 43.67 646 634 129.1
B 5 172 465166 3779.57 643 627 122.9
B 5 255 70528 568.72 643 627 122.9
B 12 111 14699 114.49 643 627 122.9
C 0 10 338563 2337.34 626 632 144.6
C 15 214 227173 1566.9 626 632 144.6
C 14 254 54927 375.54 626 632 144.6
D 8 195 1597077 10607.23 618 602 150.5
D 2 250 285432 1892.46 618 602 150.5
D 13 249 101353 669.41 618 602 150.5

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