ASTROSAT CZTI

Data Quality Report

Orbit 33267

Creation date: 2024-06-27T20:46:50.067162
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_047T10_9000004778_33267cztM0_level2.evt modeM0/AS1A11_047T10_9000004778_33267cztM0_level2_quad_clean.evt
Size (bytes)495,936,00064,563,840
Size473.0 MB 61.6 MB
Events in quadrant A2,491,139408,313
Events in quadrant B4,605,120395,319
Events in quadrant C3,083,752399,321
Events in quadrant D4,480,676381,502

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107282
B0171541
C0122811
D0170611

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A528960.113443%
B528986416.335791%
C5289510.964265%
D52892494.707884%

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 7111 5290 0 0 0.00% 0.00%
B 7111 5290 658 658 9.25% 12.44%
C 7111 5290 30 30 0.42% 0.57%
D 7111 5290 200 200 2.81% 3.78%

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 29401 228.59 632 620 125.9
A 13 6 10023 74.68 632 620 125.9
A 13 254 9211 68.23 632 620 125.9
B 5 172 2033877 18445.21 579 564 110.2
B 5 200 105424 951.24 579 564 110.2
B 0 219 50200 450.27 579 564 110.2
C 15 214 239419 1703.12 610 616 140.2
C 10 49 194561 1383.2 610 616 140.2
C 0 10 133233 945.81 610 616 140.2
D 8 195 1082560 6826.68 602 590 158.5
D 12 218 356050 2242.77 602 590 158.5
D 2 250 304354 1916.6 602 590 158.5

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