ASTROSAT CZTI

Data Quality Report

Orbit 34118

Creation date: 2024-06-27T20:56:42.521019
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_097T08_9000004874_34118cztM0_level2.evt modeM0/AS1A11_097T08_9000004874_34118cztM0_level2_quad_clean.evt
Size (bytes)462,026,88075,954,240
Size440.6 MB 72.4 MB
Events in quadrant A2,559,204493,481
Events in quadrant B3,173,783508,413
Events in quadrant C3,457,013480,744
Events in quadrant D4,445,740448,829

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0106783
B0127152
C0136292
D0168082

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A525960.114090%
B5259871.654307%
C52591252.376878%
D52593085.856627%

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 7352 5260 0 0 0.00% 0.00%
B 7352 5260 51 51 0.69% 0.97%
C 7352 5260 114 114 1.55% 2.17%
D 7352 5260 309 309 4.20% 5.87%

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 10 83 20108 148.96 655 641 130.7
A 13 6 11148 80.4 655 641 130.7
A 13 254 9238 65.78 655 641 130.7
B 5 172 356509 2894.84 652 637 122.9
B 0 219 95525 771.87 652 637 122.9
B 0 229 50249 403.57 652 637 122.9
C 0 10 704596 4900.84 627 633 143.6
C 15 214 230379 1599.44 627 633 143.6
C 14 254 23736 160.84 627 633 143.6
D 15 0 647285 4196.5 617 602 154.1
D 8 195 525645 3407.14 617 602 154.1
D 10 118 297347 1925.66 617 602 154.1

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