ASTROSAT CZTI

Data Quality Report

Orbit 42332

Creation date: 2024-06-27T22:39:05.633079
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_001T10_9000005796_42332cztM0_level2.fits modeM0/AS1C07_001T10_9000005796_42332cztM0_level2_quad_clean.evt
Size (bytes)331,951,68085,345,920
Size316.6 MB 81.4 MB
Events in quadrant A3,554,085569,175
Events in quadrant B2,499,792573,360
Events in quadrant C2,320,996565,098
Events in quadrant D3,514,224517,841

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139813
B0111012
C0103022
D0139942

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0280
C0280
D0280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5119260.507912%
B5119410.800938%
C511930.058605%
D51191703.320961%

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 7092 5120 13 13 0.18% 0.25%
B 7092 5120 23 23 0.32% 0.45%
C 7092 5120 0 0 0.00% 0.00%
D 7092 5120 180 180 2.54% 3.52%

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 15 223 825755 7485.54 536 525 110.2
A 10 83 587308 5322.62 536 525 110.2
A 13 248 44925 402.75 536 525 110.2
B 0 230 107868 1043.79 537 522 102.8
B 5 255 65306 629.93 537 522 102.8
B 5 252 57242 551.52 537 522 102.8
C 15 214 212750 1692.75 534 536 125.4
C 15 111 10141 76.62 534 536 125.4
C 7 247 7368 54.5 534 536 125.4
D 1 52 563692 4334.46 527 513 129.9
D 12 6 188443 1446.39 527 513 129.9
D 12 218 165468 1269.56 527 513 129.9

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