ASTROSAT CZTI

Data Quality Report

Orbit 32954

Creation date: 2024-06-27T20:43:49.968566
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/AS1C07_001T01_9000004752_32954cztM0_level2.evt modeM0/AS1C07_001T01_9000004752_32954cztM0_level2_quad_clean.evt
Size (bytes)987,543,360178,090,560
Size941.8 MB 169.8 MB
Events in quadrant A4,576,8661,238,762
Events in quadrant B8,853,7341,150,082
Events in quadrant C4,656,5651,221,316
Events in quadrant D11,147,8211,091,694

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0202663
B0327442
C0206392
D0402752

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02040
B02040
C02040
D02040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0290
C0290
D0290

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A9975130.130326%
B9975147114.746867%
C9975420.421053%
D9975105410.566416%

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 12900 9977 4 4 0.03% 0.04%
B 12900 9976 1036 1036 8.03% 10.38%
C 12900 9977 29 29 0.22% 0.29%
D 12900 9977 890 890 6.90% 8.92%

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 0 191 111966 486.42 1142 1117 227.9
A 13 254 18746 77.36 1142 1117 227.9
A 13 6 17314 71.07 1142 1117 227.9
B 5 172 2510797 12458.74 1071 1044 201.4
B 5 200 1471261 7298.35 1071 1044 201.4
B 0 229 230680 1139.94 1071 1044 201.4
C 0 10 145879 564.17 1114 1122 256.6
C 9 187 42893 162.8 1114 1122 256.6
C 14 67 30094 112.91 1114 1122 256.6
D 8 195 2712489 9855.26 1059 1038 275.1
D 7 80 1570553 5704.69 1059 1038 275.1
D 2 250 439837 1594.89 1059 1038 275.1

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