ASTROSAT CZTI

Data Quality Report

Orbit 29030

Creation date: 2024-06-27T19:59:24.102693
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/AS1A10_123T02_9000004160_29030cztM0_level2.evt modeM0/AS1A10_123T02_9000004160_29030cztM0_level2_quad_clean.evt
Size (bytes)1,231,698,240142,776,000
Size1.1 GB 136.2 MB
Events in quadrant A5,915,286917,088
Events in quadrant B6,065,252948,572
Events in quadrant C6,209,216888,925
Events in quadrant D18,248,942684,537

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02580
B02580
C02580
D02580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259102
B0260342
C0263232
D0627072

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A127881291.008758%
B127891331.039956%
C127891721.344906%
D12789466636.484479%

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 14028 12790 0 0 0.00% 0.00%
B 14029 12791 0 0 0.00% 0.00%
C 14029 12791 1 1 0.01% 0.01%
D 14029 12791 4435 4435 31.61% 34.67%

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 13 254 21267 64.23 1531 1501 307.7
A 3 137 15851 46.63 1531 1501 307.7
A 0 226 12809 36.74 1531 1501 307.7
B 12 111 38222 125.37 1529 1490 293.0
B 11 111 35227 115.15 1529 1490 293.0
B 14 111 32847 107.02 1529 1490 293.0
C 14 238 235708 675.26 1471 1479 346.9
C 3 233 179232 512.44 1471 1479 346.9
C 2 16 39708 110.21 1471 1479 346.9
D 7 80 11836734 40664.69 1214 1177 291.1
D 1 52 1214515 4168.8 1214 1177 291.1
D 8 195 601233 2061.68 1214 1177 291.1

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